Fix publish script

Author: dbrattli

Diff for: .github/workflows/publish.yml

@@ -16,7 +16,9 @@ jobs:
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: 6.0.403
+          dotnet-version: |
+            6.x
+            7.x
 
       - name: Setup tools
         run: dotnet tool restore