Bump coveralls from 3.2.0 to 3.3.1 (#854)

Bumps [coveralls](https://github.com/TheKevJames/coveralls-python) from 3.2.0 to 3.3.1.
- [Release notes](https://github.com/TheKevJames/coveralls-python/releases)
- [Changelog](https://github.com/TheKevJames/coveralls-python/blob/master/CHANGELOG.md)
- [Commits](TheKevJames/coveralls-python@3.2.0...3.3.1)

---
updated-dependencies:
- dependency-name: coveralls
  dependency-type: direct:development
  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>

Author: dependabot[bot]

requirements_dev.txt

@@ -2,7 +2,7 @@
 # PlexAPI requirements to run py.test.
 # pip install -r requirements_dev.txt
 #---------------------------------------------------------
-coveralls==3.2.0
+coveralls==3.3.1
 flake8==4.0.1
 pillow==8.4.0
 pytest==6.2.5