Upgrade to release-notes-assistant 1.1.1:
* multiline release notes drafts were incorrectly categorized
according the first line, instead of for each line
* when there is a backport, link the original PR first
* remove spurious </a>
If the 'worth a release-note' label is set, add a release note entry
to the description of the pull request as a preview.
* use the `release-notes/<pr-number>.md` file if any
* otherwise use the pull request title
Refs: https://code.forgejo.org/forgejo/release-notes-assistant