Update release workflow for new images

Update the release workflow to build and tag the new images. The images
are now tagged with the image name and the latest tag. The build cache
has been removed as it is not needed.

.github/workflows/release.yml

@@ -51,9 +51,6 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
       - name: Log in to Gitea Registry
         uses: docker/login-action@v3
         with:
@@ -74,11 +71,9 @@ jobs:
           context: .
           file: .containers/python/Dockerfile
           push: true
-          tags: ${{ steps.meta.outputs.tags }}
+          tags: ${{ steps.meta.outputs.image }}:latest,${{ steps.meta.outputs.image }}:${{ github.sha }}
           build-args: |
             PACKAGE=${{ matrix.app }}
-          cache-from: type=registry,ref=${{ steps.meta.outputs.image }}:buildcache
-          cache-to: type=registry,ref=${{ steps.meta.outputs.image }}:buildcache,mode=max
 
       - name: Image summary
         run: |