The workflow is not valid. In .github/workflows/docker.yml (Line: 21, Col: 15): Error from called workflow aiidalab/aiidalab-docker-stack/.github/workflows/docker-build-test-upload.yml@0dde0032342b203e7a332e6576ef8c29b75524f2 (Line: 6, Col: 15): Unrecognized named-value: 'ghcr'. Located at position 1 within expression: ghcr.io In .github/workflows/docker.yml (Line: 21, Col: 15): Error from called workflow aiidalab/aiidalab-docker-stack/.github/workflows/docker-build-test-upload.yml@0dde0032342b203e7a332e6576ef8c29b75524f2 (Line: 41, Col: 29): Unrecognized named-value: 'REGISTRY'. Located at position 1 within expression: REGISTRY