[repo-assist] CI: enable scriptgen integration test suite as a required Linux job

[dsyme]

Adds a new linux-integration-scriptgen job that runs the existing
QuickIntegrationTests build target (TestCategory=scriptgen), the
smallest known-green slice of the Linux integration suite. Verified
locally: build -> publish -> dotnet test --filter TestCategory=scriptgen
passes 12/12 (1 skipped).

This is a first step toward issue #4346's recovery plan; the remaining
13 net9 and 3 net461 failures still need triage per that issue.

Co-authored-by: Copilot 223556219+Copilot@users.noreply.github.com

[dsyme]

/repo-assist Fix this failure or disable the test and add an issue about it

Failed!  - Failed:     1, Passed:    11, Skipped:     1, Total:    13, Duration: 24 s - Paket.IntegrationTests.dll (net9.0)
  Failed simple dependencies generates expected scripts [1 s]
  Error Message:
   Paket.IntegrationTests.TestHelpers+ProcessFailedWithExitCode : The process '/home/runner/work/Paket/Paket/bin/net461/paket.exe' exited with code 1, output: 
OUT:Paket version 10.3.1+43d03a353cb2a7ebd6d03a3ee67144374a6813f7
OUT:Please use the new syntax: 'framework' has been replaced by '--framework'.
OUT:Could not detect any platforms from 'net20-cf' in '/home/runner/work/Paket/Paket/integrationtests/scenarios/loading-scripts/simple-dependencies/temp/packages/log4net/lib/net20-cf/log4net.dll', please tell the package authors
OUT:Total time taken: 0 milliseconds
OUT:Paket omitted 1 warnings. You can see them in verbose mode.
ERR:Paket failed with
ERR:-> DirectoryNotFoundException: Could not find a part of the path "/home/runner/work/Paket/Paket/integrationtests/scenarios/loading-scripts/simple-dependencies/temp/packages/NUnit/lib/nunit.framework.dll".
ERR:   StackTrace:
ERR:       at System.IO.FileStream..ctor (System.String path, System.IO.FileMode mode, System.IO.FileAccess access, System.IO.FileShare share, System.Int32 bufferSize, System.Boolean anonymous, System.IO.FileOptions options) [0x001ac] in <12b418a7818c4ca0893feeaaf67f1e7f>:0 
ERR:       at System.IO.FileStream..ctor (System.String path, System.IO.FileMode mode, System.IO.FileAccess access, System.IO.FileShare share) [0x00000] in <12b418a7818c4ca0893feeaaf67f1e7f>:0 
ERR:       at (wrapper remoting-invoke-with-check) System.IO.FileStream..ctor(string,System.IO.FileMode,System.IO.FileAccess,System.IO.FileShare)
ERR:       at Mono.Cecil.ModuleDefinition.GetFileStream (System.String fileName, System.IO.FileMode mode, System.IO.FileAccess access, System.IO.FileShare share) [0x00006] in <ef1eb9b958e34b98b2ff504a924c949d>:0 
ERR:       at Mono.Cecil.ModuleDefinition.ReadModule (System.String fileName, Mono.Cecil.ReaderParameters parameters) [0x00008] in <ef1eb9b958e34b98b2ff504a924c949d>:0 
ERR:       at Mono.Cecil.ModuleDefinition.ReadModule (System.String fileName) [0x00007] in <ef1eb9b958e34b98b2ff504a924c949d>:0 
ERR:       at Mono.Cecil.AssemblyDefinition.ReadAssembly (System.String fileName) [0x00000] in <ef1eb9b958e34b98b2ff504a924c949d>:0 
ERR:       at <StartupCode$Paket-Core>.$DependencyCache+dllFiles@109.Invoke (System.String path) [0x00001] in <2003753502c1fe204ab09b33e5d3899c>:0 
ERR:       at Microsoft.FSharp.Collections.Internal+IEnumerator+choose@240[T,TResult].System.Collections.IEnumerator.MoveNext () [0x00045] in <69b4f8a64160cdeb146cd50627c89bbd>:0 
ERR:       at Microsoft.FSharp.Core.ExtraTopLevelOperators.dictRefType[TKey,T] (System.Collections.Generic.IEnumerable`1[T] l) [0x0004d] in <69b4f8a64160cdeb146cd50627c89bbd>:0 
ERR:       at Microsoft.FSharp.Core.ExtraTopLevelOperators.CreateDictionary[TKey,TValue] (System.Collections.Generic.IEnumerable`1[T] keyValuePairs) [0x00019] in <69b4f8a64160cdeb146cd50627c89bbd>:0 
ERR:       at Paket.DependencyCache.getDllsWithinPackage (Paket.FrameworkIdentifier framework, Paket.InstallModel installModel) [0x00020] in <2003753502c1fe204ab09b33e5d3899c>:0 
ERR:       at Paket.DependencyCache.GetOrderedPackageReferences (Paket.Domain+GroupName groupName, Paket.Domain+PackageName packageName, Paket.FrameworkIdentifier framework) [0x00046] in <2003753502c1fe204ab09b33e5d3899c>:0 
ERR:       at Paket.LoadingScripts+ScriptGeneration+generateScriptContent@214-1.Invoke (System.Tuple`2[T1,T2] _arg3, Paket.PackageResolver+PackageInfo package) [0x00055] in <2003753502c1fe204ab09b33e5d3899c>:0 
ERR:       at Microsoft.FSharp.Collections.SeqModule.Fold[T,TState] (Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] folder, TState state, System.Collections.Generic.IEnumerable`1[T] source) [0x0002f] in <69b4f8a64160cdeb146cd50627c89bbd>:0 
ERR:       at Paket.LoadingScripts+ScriptGeneration+generateScriptContent@211.Invoke (System.Tuple`2[T1,T2] tupledArg) [0x00041] in <2003753502c1fe204ab09b33e5d3899c>:0 
ERR:       at Microsoft.FSharp.Collections.Internal+IEnumerator+map@128[a,b].DoMoveNext (b& curr) [0x00020] in <69b4f8a64160cdeb146cd50627c89bbd>:0 
ERR:       at Microsoft.FSharp.Collections.Internal+IEnumerator+MapEnumerator`1[T].System.Collections.IEnumerator.MoveNext () [0x0000c] in <69b4f8a64160cdeb146cd50627c89bbd>:0 
ERR:       at Microsoft.FSharp.Collections.SeqModule.ToList[T] (System.Collections.Generic.IEnumerable`1[T] source) [0x00042] in <69b4f8a64160cdeb146cd50627c89bbd>:0 
ERR:       at Paket.LoadingScripts+ScriptGeneration.generateScriptContent (Paket.LoadingScripts+ScriptGeneration+PaketContext ctx) [0x0006a] in <2003753502c1fe204ab09b33e5d3899c>:0 
ERR:       at Paket.LoadingScripts+ScriptGeneration.constructScriptsFromData (Paket.DependencyCache depCache, Microsoft.FSharp.Collections.FSharpList`1[T] groups, Microsoft.FSharp.Collections.FSharpList`1[T] providedFrameworks, Microsoft.FSharp.Collections.FSharpList`1[T] providedScriptTypes) [0x00267] in <2003753502c1fe204ab09b33e5d3899c>:0 
ERR:       at Paket.Dependencies.GenerateLoadScriptData (System.String paketDependencies, Microsoft.FSharp.Collections.FSharpList`1[T] groups, Microsoft.FSharp.Collections.FSharpList`1[T] frameworks, Microsoft.FSharp.Collections.FSharpList`1[T] scriptTypes) [0x00013] in <2003753502c1fe204ab09b33e5d3899c>:0 
ERR:       at Paket.Dependencies.GenerateLoadScripts (Microsoft.FSharp.Collections.FSharpList`1[T] groups, Microsoft.FSharp.Collections.FSharpList`1[T] frameworks, Microsoft.FSharp.Collections.FSharpList`1[T] scriptTypes) [0x00000] in <2003753502c1fe204ab09b33e5d3899c>:0 
ERR:       at Paket.Program+handleCommand@913-27.Invoke (Argu.ParseResults`1[Template] results) [0x00000] in <552ba54c3411d64adc1c563c4cb40fc9>:0 
ERR:       at Paket.Program.processWithValidationEx[a] (Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] printUsage, System.Boolean silent, Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] validateF, Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] commandF, a result) [0x0004f] in <552ba54c3411d64adc1c563c4cb40fc9>:0 
ERR:       at Paket.Program.processWithValidation[T] (System.Boolean silent, Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] validateF, Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] commandF, Argu.ParseResults`1[Template] result) [0x00000] in <552ba54c3411d64adc1c563c4cb40fc9>:0 
ERR:       at Paket.Program.processCommand[a] (System.Boolean silent, Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] commandF, Argu.ParseResults`1[Template] result) [0x00000] in <552ba54c3411d64adc1c563c4cb40fc9>:0 
ERR:       at Paket.Program.handleCommand (System.Boolean silent, Paket.Commands+Command command) [0x00393] in <552ba54c3411d64adc1c563c4cb40fc9>:0 
ERR:       at Paket.Program.main () [0x006a0] in <552ba54c3411d64adc1c563c4cb40fc9>:0 
  Stack Trace:
    at Paket.IntegrationTests.TestHelpers.directToolEx (System.Collections.Generic.IEnumerable`1[T] env, System.Boolean isPaket, System.String host, System.String path, System.String commands, System.String workingDir) [0x00303] in <f36ad9964309f9f46257ee256fd84b84>:0 
  at Paket.IntegrationTests.TestHelpers.directPaketInPathEx (System.String command, System.String scenarioPath) [0x0001a] in <f36ad9964309f9f46257ee256fd84b84>:0 
  at Paket.IntegrationTests.TestHelpers.directPaket (System.String command, System.String scenario) [0x00011] in <f36ad9964309f9f46257ee256fd84b84>:0 
  at Paket.IntegrationTests.LoadingScriptGenerationTests.simple dependencies generates expected scripts () [0x00049] in <f36ad9964309f9f46257ee256fd84b84>:0 
  at (wrapper managed-to-native) System.Reflection.RuntimeMethodInfo.InternalInvoke(System.Reflection.RuntimeMethodInfo,object,object[],System.Exception&)
  at System.Reflection.RuntimeMethodInfo.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x0007c] in <12b418a7818c4ca0893feeaaf67f1e7f>:0 

Failed!  - Failed:     8, Passed:     4, Skipped:     1, Total:    13, Duration: 23 s - Paket.IntegrationTests.dll (net461)
Running build failed.
Error:
System.Exception: Test failed on "test" "integrationtests/Paket.IntegrationTests/Paket.IntegrationTests.fsproj" --configuration Release --filter TestCategory=scriptgen 
  at Fake.DotNetCli+Test@298-3.Invoke (System.String message) [0x00000] in <5c90a2e0ccf1c534a7450383e0a2905c>:0 
  at Fake.DotNetCli.Test (Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] setTestParams) [0x001da] in <5c90a2e0ccf1c534a7450383e0a2905c>:0 
  at FSI_0005.Build+clo@268-22.Invoke (Microsoft.FSharp.Core.Unit _arg6) [0x00006] in <b8a0cc6e35a1430e93a68f49ccbc09c8>:0 
  at Fake.TargetHelper.runSingleTarget (Fake.TargetHelper+TargetTemplate`1[a] target) [0x00049] in <5c90a2e0ccf1c534a7450383e0a2905c>:0 

[github-actions]

✗ Repo Assist encountered failed to deliver outputs, see workflow run.

Generated by 🌈 Repo Assist, see workflow run. Learn more.

[github-actions]

Created related issue: #4401