Bump pytest-cov from 6.2.1 to 7.0.0 in /ci/latest

Bumps [pytest-cov](https://github.com/pytest-dev/pytest-cov) from 6.2.1 to 7.0.0.
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v6.2.1...v7.0.0)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-version: 7.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

ci/latest/requirements.txt

@@ -8,7 +8,7 @@ httpx==0.28.1
 hypothesis==6.137.3
 nextline-test-utils==0.1.2
 pytest-asyncio==1.2.0
-pytest-cov==6.2.1
+pytest-cov==7.0.0
 pytest==8.4.2
 pytest-httpx==0.35.0
 deepdiff==8.6.1