Update coverage requirement from <8,>=7.6 to >=7.13.5,<8

Updates the requirements on [coverage](https://github.com/coveragepy/coveragepy) to permit the latest version.
- [Release notes](https://github.com/coveragepy/coveragepy/releases)
- [Changelog](https://github.com/coveragepy/coveragepy/blob/main/CHANGES.rst)
- [Commits](coveragepy/coveragepy@7.6.0...7.13.5)

---
updated-dependencies:
- dependency-name: coverage
  dependency-version: 7.13.5
  dependency-type: direct:development
...

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

Author: dependabot[bot]

requirements-dev.txt

@@ -1,4 +1,4 @@
 -r requirements.txt
-coverage[toml]>=7.6,<8
+coverage[toml]>=7.13.5,<8
 pre-commit>=4.2,<5
 ruff>=0.12,<1