fix docker build context

Author: piotrekzyla

.github/workflows/demo_build_and_deploy.yml

@@ -71,10 +71,11 @@ jobs:
         id: build-and-push
         uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09 # v5.0.0
         with:
-          context: .
-          push: ${{ github.event_name != 'pull_request' }}
+          context: "{{defaultContext}}:demos-docker"
+          push: true
           tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
+          # tags: ${{ steps.meta.outputs.tags }}
+          # labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha
           cache-to: type=gha,mode=max