build(deps): bump coverage from 7.6.1 to 7.6.4 (#104)

Bumps [coverage](https://github.com/nedbat/coveragepy) from 7.6.1 to 7.6.4.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.6.1...7.6.4)

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

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

requirements.txt

@@ -2,7 +2,7 @@ Flask==3.0.3
 autopep8==2.3.1
 gunicorn==23.0.0
 pytest==8.3.3
-coverage==7.6.1
+coverage==7.6.4
 pony==0.7.19
 psycopg2==2.9.9
 flask-login==0.6.3