ci: Downgrade muno92/resharper_inspectcode to 1.11.11

The newer version, 1.11.12, causes errors as if the `.editorconfig` is
being ignored. I reported an issue here:

https://github.com/muno92/resharper_inspectcode/issues/481

.github/workflows/inspect-code.yml

@@ -37,7 +37,7 @@ jobs:
         run: dotnet restore
 
       - name: Inspect Code
-        uses: muno92/resharper_inspectcode@v1
+        uses: muno92/resharper_inspectcode@1.11.11
         with:
           solutionPath: Recyclarr.sln
           minimumSeverity: warning