build(deps-dev): bump coverage in /app/video-processing/lambda

Bumps [coverage](https://github.com/nedbat/coveragepy) from 7.4.4 to 7.6.1.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.4.4...7.6.1)

---
updated-dependencies:
- dependency-name: coverage
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

app/video-processing/lambda/requirements_dev.txt

@@ -2,5 +2,5 @@ flake8==7.0.0
 pytest==8.1.1
 pytest-socket==0.7.0
 pytest-env==1.1.3
-coverage==7.4.4
+coverage==7.6.1
 moto==5.0.4