pip(deps): bump pytest from 5.3.5 to 7.4.2

Bumps [pytest](https://github.com/pytest-dev/pytest) from 5.3.5 to 7.4.2.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@5.3.5...7.4.2)

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

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

tests/requirements.txt

@@ -1,4 +1,4 @@
-pytest==5.3.5
+pytest==7.4.2
 boto3==1.11.12
 requests==2.22.0
 buildbot-worker==2.0.1