Bump coverage from 7.2.3 to 7.4.0 (#27)

Bumps [coverage](https://github.com/nedbat/coveragepy) from 7.2.3 to 7.4.0.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.2.3...7.4.0)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pyproject.toml

@@ -31,7 +31,7 @@ httpx = [
 ]
 test = [
     "black",
-    "coverage==7.2.3",
+    "coverage==7.4.0",
     "flake8==6.1.0",
     "mypy==1.8.0",
     "pycodestyle",