build(deps): bump coverage from 7.6.9 to 7.6.10 in /backend

Bumps [coverage](https://github.com/nedbat/coveragepy) from 7.6.9 to 7.6.10.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.6.9...7.6.10)

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

Signed-off-by: dependabot[bot] <[email protected]>

backend/requirements.txt

@@ -16,5 +16,5 @@ basegun-ml==2.0.5
 numpy<3.0.0
 # Dev
 pytest==8.3.4
-coverage==7.6.9
+coverage==7.6.10
 Faker==33.1.0