fix: fix release workflow

.github/workflows/publish.yml

@@ -21,24 +21,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - name: Docker meta
-        id: meta
-        uses: docker/metadata-action@v3
-        with:
-          images: nhost/functions
-          tags: |
-            type=schedule
-            type=raw,value=latest,enable=${{ github.event_name == 'push' && endsWith(github.ref, github.event.repository.default_branch) }}
-            type=ref,event=branch,enable=${{ !endsWith(github.ref, github.event.repository.default_branch) }}
-            type=ref,event=pr
-            type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=semver,pattern={{major}}
-            type=sha
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v1
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
+
       - name: Login to DockerHub
         uses: docker/login-action@v1
         with:
@@ -49,22 +38,18 @@ jobs:
         uses: docker/build-push-action@v2
         timeout-minutes: 60
         with:
-          # TODO: use cache https://github.com/docker/build-push-action/blob/master/docs/advanced/cache.md
           context: .
           platforms: linux/amd64,linux/arm64
           push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: 18-${{ steps.meta.outputs.labels }}
+          tags: "nhost/functions:18-${{ github.ref_name }}"
           file: 18.Dockerfile
 
       - name: Build and publish to Docker Hub
         uses: docker/build-push-action@v2
         timeout-minutes: 60
         with:
-          # TODO: use cache https://github.com/docker/build-push-action/blob/master/docs/advanced/cache.md
           context: .
           platforms: linux/amd64,linux/arm64
           push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: 20-${{ steps.meta.outputs.labels }}
+          tags: "nhost/functions:20-${{ github.ref_name }}"
           file: 20.Dockerfile