To build the custom plugin registry, we suggest to use this repo: https://github.com/redhat-developer/che-plugin-registry.git. The Dockerfile uses old rhel8-postgresql image that provides a few vulnerabilities.

We can try to update repo to use latest rhel9-postgresql image https://catalog.redhat.com/en/software/containers/rhel9/postgresql-15/63f763f779eb1214c4d6fcf6?image=68ed30ccdd09ffc4be600336