Remove docker/metadata-action dependency

Inline the image tags directly in the build step instead of using the
metadata action.

Author: ezhlobo

.github/workflows/release-image.yml

@@ -26,16 +26,6 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Docker metadata
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ghcr.io/${{ github.repository_owner }}/devcontainer
-          tags: |
-            type=sha
-            type=raw,value=latest
-            type=schedule,pattern={{date 'YYYYMMDD'}}
-
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
@@ -44,7 +34,8 @@ jobs:
         with:
           context: ./image
           push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
+          tags: |
+            ghcr.io/${{ github.repository_owner }}/devcontainer:latest
+            ghcr.io/${{ github.repository_owner }}/devcontainer:${{ github.sha }}
           cache-from: type=gha
           cache-to: type=gha,mode=max