Switch to buildjet runner

.github/workflows/docker-publish.yml

@@ -25,7 +25,7 @@ env:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: buildjet-2vcpu-ubuntu-2204-arm
     permissions:
       contents: read
       packages: write
@@ -55,10 +55,6 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-#      - name: Setup Buildx
-#        uses: docker/setup-buildx-action@v3.7.1
-#        with:
-#          platforms: linux/amd64
       # Extract metadata (tags, labels) for Docker
       # https://github.com/docker/metadata-action
       - name: Extract Docker metadata
@@ -82,8 +78,6 @@ jobs:
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
-#          cache-from: type=gha
-#          cache-to: type=gha,mode=max
           platforms: linux/arm64
           build-args: |
             DOTNET_BUILD_PLATFORM=linux-arm64