ci(docker): build local code checkout, add caching to dev build

Author: matthewpi

.github/workflows/docker.yml

@@ -40,6 +40,8 @@ jobs:
         uses: docker/build-push-action@v2
         if: "contains(github.ref, 'release/v')"
         with:
+          context: .
+          file: ./Dockerfile
           push: true
           platforms: linux/amd64,linux/arm64
           tags: ${{ steps.docker_meta.outputs.tags }}
@@ -49,7 +51,11 @@ jobs:
         uses: docker/build-push-action@v2
         if: "contains(github.ref, 'develop')"
         with:
+          context: .
+          file: ./Dockerfile
           push: ${{ github.event_name != 'pull_request' }}
           platforms: linux/amd64,linux/arm64
           tags: ${{ steps.docker_meta.outputs.tags }}
           labels: ${{ steps.docker_meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max