build(deps): bump psycopg from 3.1.13 to 3.1.15 in /server (#1965)

Bumps [psycopg](https://github.com/psycopg/psycopg) from 3.1.13 to 3.1.15.
- [Changelog](https://github.com/psycopg/psycopg/blob/master/docs/news.rst)
- [Commits](psycopg/psycopg@3.1.13...3.1.15)

---
updated-dependencies:
- dependency-name: psycopg
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>