Bump pytest from 7.3.1 to 7.4.0 (#742)

Bumps [pytest](https://github.com/pytest-dev/pytest) from 7.3.1 to 7.4.0.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@7.3.1...7.4.0)

---
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>

requirements.txt

@@ -26,7 +26,7 @@ importlib-metadata==4.13.0
 mypy==1.2.0
 trio-typing==0.8.0
 types-certifi==2021.10.8.3
-pytest==7.3.1
+pytest==7.4.0
 pytest-httpbin==2.0.0
 pytest-trio==0.7.0
 werkzeug<2.1  # See: https://github.com/postmanlabs/httpbin/issues/673