build(deps): bump coverage from 7.6.7 to 7.6.8

Bumps [coverage](https://github.com/nedbat/coveragepy) from 7.6.7 to 7.6.8.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.6.7...7.6.8)

---
updated-dependencies:
- dependency-name: coverage
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pyproject.toml

@@ -76,7 +76,7 @@ test = [
     "pytest==8.3.3",
         "pluggy==1.5.0",
     "pytest-cov==6.0.0",
-        "coverage==7.6.7",
+        "coverage==7.6.8",
     "pytest-datafiles==3.0.0",
     "pytest-mock==3.14.0",
     "pytest-timeout==2.3.1",

requirements-test.txt

@@ -1,7 +1,7 @@
 pytest==8.3.3
 pluggy==1.5.0
 pytest-cov==6.0.0
-coverage==7.6.7
+coverage==7.6.8
 pytest-datafiles==3.0.0
 pytest-mock==3.14.0
 pytest-timeout==2.3.1