Bump pytest-cov from 6.1.1 to 6.3.0 in /server

Bumps [pytest-cov](https://github.com/pytest-dev/pytest-cov) from 6.1.1 to 6.3.0.
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v6.1.1...v6.3.0)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-version: 6.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

server/requirements.txt

@@ -46,7 +46,7 @@ flake8==7.2.0
 pytest==8.3.5
 pytest-django==4.11.1
 pytest-asyncio==0.26.0
-pytest-cov==6.1.1
+pytest-cov==6.3.0
 pytest-rerunfailures==15.1
 aioresponses==0.7.8
 yappi==1.6.10