[tests] use dotnet/maui/net9.0 branch

[jonathanpeppers]

The MAUI Integration test lane is currently failing with:

Unhandled exception: Microsoft.NET.Sdk.WorkloadManifestReader.WorkloadManifestCompositionException: Could not find workload 'microsoft-net-runtime-android-net8' extended by workload 'android' in manifest 'microsoft.net.sdk.android' [C:\a\_work\1\s\maui\bin\dotnet\sdk-manifests\8.0.100\microsoft.net.sdk.android\WorkloadManifest.json]
    at Microsoft.NET.Sdk.WorkloadManifestReader.WorkloadResolver.<>c__DisplayClass26_0.<<EnumerateWorkloadWithExtends>g__EnumerateWorkloadWithExtendsRec|0>d.MoveNext()
    at System.Linq.Enumerable.AppendPrependIterator`1.LoadFromEnumerator()
    at System.Linq.Enumerable.AppendPrepend1Iterator`1.MoveNext()
    at System.Linq.Enumerable.All[TSource](IEnumerable`1 source, Func`2 predicate)
    at Microsoft.NET.Sdk.WorkloadManifestReader.WorkloadResolver.GetAvailableWorkloadDefinitions()+MoveNext()
    at System.Linq.Enumerable.SelectEnumerableIterator`2.MoveNext()
    at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
    at Microsoft.DotNet.Workloads.Workload.Install.WorkloadInstallCommand.ValidateWorkloadIdsInput()
    at Microsoft.DotNet.Workloads.Workload.Install.WorkloadInstallCommand..ctor(ParseResult parseResult, IReporter reporter, IWorkloadResolverFactory workloadResolverFactory, IInstaller workloadInstaller, INuGetPackageDownloader nugetPackageDownloader, IWorkloadManifestUpdater workloadManifestUpdater, String tempDirPath, IReadOnlyCollection`1 workloadIds)
    at Microsoft.DotNet.Cli.WorkloadInstallCommandParser.<>c.<ConstructCommand>b__6_0(ParseResult parseResult)
    at System.CommandLine.Invocation.InvocationPipeline.Invoke(ParseResult parseResult)
    at Microsoft.DotNet.Cli.Program.ProcessArgs(String[] args, TimeSpan startupTime, ITelemetry telemetryClient)
C:\a\_work\1\s\maui\src\DotNet\DotNet.csproj(198,5): error MSB3073: The command ""C:\a\_work\1\s\maui\bin/dotnet/dotnet" workload install android --skip-sign-check --skip-manifest-update --verbosity diag --temp-dir "C:\a\_work\1\s\maui\bin/temp/" --configfile "C:\a\_work\1\s\maui\NuGet.config"" exited with code 1.

This is likely just due to the fact that it's using the dotnet/maui/net8.0 branch. Hopefully, switching to the proper branch fixes things.

[jonathanpeppers]

Ok this makes it much further, but we get:

error NETSDK1139: The target platform identifier ios was not recognized.

Is there something that is supposed to skip the iOS build? Maybe it's not working.

[jonathanpeppers]

Ok, great!

[pjcollins]

We're green!