CI Update

Author: sphexator

.github/workflows/dockerpublish.yml

@@ -29,7 +29,7 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: '9'
+        dotnet-version: '9.0.x'
     - name: Build with dotnet
       run: dotnet build --configuration Release