gh: Actually reinstate tags

Author: csparker247

.github/workflows/build_docker.yml

@@ -91,6 +91,8 @@ jobs:
             USE_CUDA=${{ matrix.use_cuda }}
           push: ${{ github.event_name != 'pull_request' }}
           platforms: linux/${{ matrix.architecture }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
 
       - name: Generate artifact attestation
         uses: actions/attest-build-provenance@v3