ci: fix interop Docker builder (#3712)

.github/workflows/build-interop-docker.yml

@@ -8,13 +8,17 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: docker/build-push-action@v3
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
         with:
-          always_pull: true
-          path: interop/
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
-          repository: martenseemann/quic-go-interop
-          tags: latest
-          tag_with_ref: true
-          add_git_labels: true
+      - uses: docker/build-push-action@v4
+        with:
+          context: "{{defaultContext}}:interop"
+          push: true
+          tags: martenseemann/quic-go-interop:latest