Bump pytest-cov from 6.1.1 to 6.2.1 in /src (#4133)

Bumps [pytest-cov](https://github.com/pytest-dev/pytest-cov) from 6.1.1 to 6.2.1.
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v6.1.1...v6.2.1)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-version: 6.2.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

src/requirements.txt

@@ -3,7 +3,7 @@ flask-talisman==1.1.0
 gunicorn==23.0.0
 pytest==8.4.0
 pytest-watch==4.2.0
-pytest-cov==6.1.1
+pytest-cov==6.2.1
 sqlfluff==3.4.0
 
 # sql/util/* dependencies