Only run slash-command-dispatch workflow on pull requests (#13600)

I'm getting an email about a failed workflow every time I comment on an
issue. This PR adds a condition to slashCommandDispatch in line with the
example on
https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#issue_comment-on-issues-only-or-pull-requests-only
###### Microsoft Reviewers: [Open in
CodeFlow](https://microsoft.github.io/open-pr/?codeflow=https://github.com/Azure/bicep/pull/13600)

.github/workflows/slash-command-dispatch.yml

@@ -11,6 +11,7 @@ on:
     types: [created]
 jobs:
   slashCommandDispatch:
+    if: ${{ github.event.issue.pull_request }}
     runs-on: ubuntu-latest
     permissions:
       actions: write

global.json

@@ -4,7 +4,7 @@
   },
   "sdk": {
     "allowPrerelease": false,
-    "version": "8.0.201",
+    "version": "8.0.202",
     "rollForward": "latestFeature"
   }
-}
+}

src/Bicep.Cli/packages.lock.json

@@ -27,9 +27,9 @@
       },
       "Microsoft.NET.ILLink.Tasks": {
         "type": "Direct",
-        "requested": "[8.0.2, )",
-        "resolved": "8.0.2",
-        "contentHash": "hKTrehpfVzOhAz0mreaTAZgbz0DrMEbWq4n3hAo8Ks6WdxdqQhNPvzOqn9VygKuWf1bmxPdraqzTaXriO/sn0A=="
+        "requested": "[8.0.3, )",
+        "resolved": "8.0.3",
+        "contentHash": "0kwNg0LBIvVTx9A2mo9Mnw4wLGtaeQgjSz5P13bOOwdWPPLe9HzI+XTkwiMhS7iQCM6X4LAbFR76xScaMw0MrA=="
       },
       "Microsoft.SourceLink.GitHub": {
         "type": "Direct",

src/Bicep.Core/packages.lock.json

@@ -195,9 +195,9 @@
       },
       "Microsoft.NET.ILLink.Tasks": {
         "type": "Direct",
-        "requested": "[8.0.2, )",
-        "resolved": "8.0.2",
-        "contentHash": "hKTrehpfVzOhAz0mreaTAZgbz0DrMEbWq4n3hAo8Ks6WdxdqQhNPvzOqn9VygKuWf1bmxPdraqzTaXriO/sn0A=="
+        "requested": "[8.0.3, )",
+        "resolved": "8.0.3",
+        "contentHash": "0kwNg0LBIvVTx9A2mo9Mnw4wLGtaeQgjSz5P13bOOwdWPPLe9HzI+XTkwiMhS7iQCM6X4LAbFR76xScaMw0MrA=="
       },
       "Microsoft.PowerPlatform.ResourceStack": {
         "type": "Direct",

src/Bicep.Decompiler/packages.lock.json

@@ -16,9 +16,9 @@
       },
       "Microsoft.NET.ILLink.Tasks": {
         "type": "Direct",
-        "requested": "[8.0.2, )",
-        "resolved": "8.0.2",
-        "contentHash": "hKTrehpfVzOhAz0mreaTAZgbz0DrMEbWq4n3hAo8Ks6WdxdqQhNPvzOqn9VygKuWf1bmxPdraqzTaXriO/sn0A=="
+        "requested": "[8.0.3, )",
+        "resolved": "8.0.3",
+        "contentHash": "0kwNg0LBIvVTx9A2mo9Mnw4wLGtaeQgjSz5P13bOOwdWPPLe9HzI+XTkwiMhS7iQCM6X4LAbFR76xScaMw0MrA=="
       },
       "Microsoft.SourceLink.GitHub": {
         "type": "Direct",

src/Bicep.Wasm/packages.lock.json

@@ -23,9 +23,9 @@
       },
       "Microsoft.NET.ILLink.Tasks": {
         "type": "Direct",
-        "requested": "[8.0.2, )",
-        "resolved": "8.0.2",
-        "contentHash": "hKTrehpfVzOhAz0mreaTAZgbz0DrMEbWq4n3hAo8Ks6WdxdqQhNPvzOqn9VygKuWf1bmxPdraqzTaXriO/sn0A=="
+        "requested": "[8.0.3, )",
+        "resolved": "8.0.3",
+        "contentHash": "0kwNg0LBIvVTx9A2mo9Mnw4wLGtaeQgjSz5P13bOOwdWPPLe9HzI+XTkwiMhS7iQCM6X4LAbFR76xScaMw0MrA=="
       },
       "Microsoft.NET.Sdk.WebAssembly.Pack": {
         "type": "Direct",