multiple dotnet versions fix

Author: herostoky

.github/workflows/publish.yml

@@ -12,15 +12,18 @@ on:
 jobs:
   build:
     runs-on: windows-latest
+    strategy:
+      matrix:
+        dotnet-version: ['3.1.x', '6.0.x']
 
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Setup .NET
+      - name: Setup dotnet ${{ matrix.dotnet-version }}
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: ["3.1.x", "8.0.x"] 
+          dotnet-version: ${{ matrix.dotnet-version }}
 
       - name: Restore dependencies
         run: dotnet restore Src/FluentAssertionsToShouldlyAnalyzer.sln