chore: update conditional for push_to_registry

Signed-off-by: Juan Munoz <[email protected]>

Author: juancho0202

.github/workflows/release-please.yml

@@ -26,7 +26,7 @@ jobs:
   # The logic below handles the docker hub publication:
   push_to_registry:
     needs: release_please
-    if: ${{ needs.release_please.outputs.release_created }}
+    if: needs.release_please.outputs.release_created == "true"
     name: Build and publish
     runs-on: ubuntu-latest
     timeout-minutes: 15