workflow bump

Author: mlapaglia

.github/workflows/docker-publish.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Setup .NET
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: 8.x
+          dotnet-version: 9.x
 
       - name: Restore Dependencies
         run: dotnet restore
@@ -101,7 +101,7 @@ jobs:
       - name: Setup Buildx
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: '8.x'
+          dotnet-version: '9.x'
           include-prerelease: true
 
       - name: Build Artifact