removing buildx stage

.forgejo/workflows/docker-build.yml

@@ -26,9 +26,6 @@ jobs:
             type=semver,pattern={{major}}.{{minor}}
             type=sha
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
       - name: Login to Container Registry
         if: github.event_name != 'pull_request'
         uses: docker/login-action@v2
@@ -37,10 +34,12 @@ jobs:
           username: ${{ vars.FORGEJO_USER }}
           password: ${{ secrets.FORGEJO_TOKEN }}
 
-      - name: Build and push
-        uses: docker/build-push-action@v6
+      - name: Build and Push
+        uses: docker/build-push-action@v4
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max