Use new builtin gha docker cache type (#492)

With this cache type, we don't need to manually manage the cache.

https://docs.docker.com/build/cache/backends/gha/

.github/workflows/docker.yml

@@ -26,14 +26,6 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
 
-      - name: Cache Docker layers
-        uses: actions/cache@v3
-        with:
-          path: /tmp/.buildx-cache
-          key: ${{ runner.os }}-buildx-${{ github.sha }}
-          restore-keys: |
-            ${{ runner.os }}-buildx-
-
       - name: Log in to the Container registry
         uses: docker/login-action@v2
         with:
@@ -68,13 +60,5 @@ jobs:
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           platforms: linux/arm64,linux/amd64
-          cache-from: type=local,src=/tmp/.buildx-cache
-          cache-to: type=local,dest=/tmp/.buildx-cache-new,mode=max
-
-      # Temp fix
-      # https://github.com/docker/build-push-action/issues/252
-      # https://github.com/moby/buildkit/issues/1896
-      - name: Move cache
-        run: |
-          rm -rf /tmp/.buildx-cache
-          mv /tmp/.buildx-cache-new /tmp/.buildx-cache
+          cache-from: type=gha,scope=${{ github.workflow }}
+          cache-to: type=gha,mode=max,scope=${{ github.workflow }}