Update publish.yml

Author: Franchef

.github/workflows/publish.yml

@@ -7,16 +7,17 @@ jobs:
   build:
 
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        dotnet-version: ['3.0', '3.1.x', '5.0.x', '6.0.x' ]
+#    strategy:
+#      matrix:
+#        dotnet-version: ['3.0', '3.1.x', '5.0.x', '6.0.x' ]
 
     steps:
       - uses: actions/checkout@v3
       - name: Setup .NET Core SDK ${{ matrix.dotnet-version }}
         uses: actions/setup-dotnet@v3
         with:
-          dotnet-version: ${{ matrix.dotnet-version }}
+          dotnet-version: 6.0.x
+#          dotnet-version: ${{ matrix.dotnet-version }}
       - name: Install dependencies
         run: dotnet restore
       - name: Build