Update dotnet.yml

Author: mckaragoz

.github/workflows/dotnet.yml

@@ -16,7 +16,9 @@ jobs:
     - name: Setup .NET
       uses: actions/setup-dotnet@v2
       with:
-        dotnet-version: 6.0.x
+        dotnet-version: |
+          6.0.x
+          7.0.x
         publish-coverage: true
     - name: Restore dependencies
       run: dotnet restore