Bump pytest from 7.1.2 to 7.3.1 (#132)

Bumps [pytest](/~https://github.com/pytest-dev/pytest) from 7.1.2 to 7.3.1.
- [Release notes](/~https://github.com/pytest-dev/pytest/releases)
- [Changelog](/~https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@7.1.2...7.3.1)

---
updated-dependencies:
- dependency-name: pytest
  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>

tests/requirements.txt

@@ -1,3 +1,3 @@
 coverage==7.2.5
 codecov==2.1.12
-pytest==7.1.2
+pytest==7.3.1