chore(deps): bump pytest from 6.2.5 to 7.0.0 in /dev_requirements (#422)

Bumps [pytest](https://github.com/pytest-dev/pytest) from 6.2.5 to 7.0.0.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@6.2.5...7.0.0)

---
updated-dependencies:
- dependency-name: pytest
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

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

dev_requirements/test-requirements.txt

@@ -1,4 +1,4 @@
 mock==4.0.3
-pytest==6.2.5
+pytest==7.0.0
 pytest-cov==3.0.0
 pytest-mock==3.6.1