Bump the unit-tests group across 1 directory with 2 updates

Bumps the unit-tests group with 2 updates in the /test directory: [pytest](https://github.com/pytest-dev/pytest) and [coverage](https://github.com/nedbat/coveragepy).


Updates `pytest` from 8.2.0 to 8.2.2
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.2.0...8.2.2)

Updates `coverage` from 7.5.1 to 7.5.3
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.5.1...7.5.3)

---
updated-dependencies:
- dependency-name: pytest
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: unit-tests
- dependency-name: coverage
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: unit-tests
...

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

test/requirements.txt

@@ -1,5 +1,5 @@
 pynvim < 0.5 ; python_version < '3.7'
 pynvim==0.5 ; python_version >= '3.7'
-pytest==8.2.0 ; python_version >= '3.12'
-coverage==7.5.1 ; python_version >= '3.12'
+pytest==8.2.2 ; python_version >= '3.12'
+coverage==7.5.3 ; python_version >= '3.12'
 typing-extensions ; python_version < '3.8'