Bump pytest from 6.2.5 to 7.0.0 in /tests (#346)

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] <[email protected]>

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

tests/requirements.txt

@@ -4,7 +4,7 @@ attrs==21.4.0
 bson==0.5.10
 docstring-parser==0.13
 pydantic==1.9.0
-pytest==6.2.5
+pytest==7.0.0
 pytest-cov==3.0.0
 pytest-asyncio==0.16.0
 SQLAlchemy==1.4.31