chore(deps): update coverage requirement from ~=7.4.1 to ~=7.4.3 in /api

Updates the requirements on [coverage](https://github.com/nedbat/coveragepy) to permit the latest version.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](https://github.com/nedbat/coveragepy/compare/7.4.1...7.4.3)

---
updated-dependencies:
- dependency-name: coverage
  dependency-type: direct:production
...

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

api/requirements.txt

@@ -1,6 +1,6 @@
 captcha~=0.5.0
 celery~=5.3.6
-coverage~=7.4.1
+coverage~=7.4.3
 cryptography~=42.0.2
 Django~=5.0.3
 django-cors-headers~=4.3.1