Updates the compose submodule to commit f4dd57f on branch
fix/hermes-s6-overlay-entrypoint-crash, which:
- Removes the broken entrypoint override (bash->tini->entrypoint.sh)
- Bakes start-hermes.sh into the image as the new CMD
- Uses the image default ENTRYPOINT (s6-overlay /init)
Fixes the SIGTERM restart loop on the Hermes container.
See compose PR #56 for details.
