message: docs: Update RELEASE_NOTES.md
diff: # Community Solid Server release notes
  +## v4.1.0
  +### New features
  +- Environment variables can be used instead of CLI arguments if preferred.
  +
  ## v4.0.1
  Freezes the `oidc-provider` dependency to prevent a potential issue with the solid authn client
  as described in https://github.com/inrupt/solid-client-authn-js/issues/2103.
  