Bump keyring from 23.3.0 to 23.4.0 in /requirements

Bumps [keyring](https://github.com/jaraco/keyring) from 23.3.0 to 23.4.0.
- [Release notes](https://github.com/jaraco/keyring/releases)
- [Changelog](https://github.com/jaraco/keyring/blob/main/CHANGES.rst)
- [Commits](jaraco/keyring@v23.3.0...v23.4.0)

---
updated-dependencies:
- dependency-name: keyring
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements/dev-requirements.txt

@@ -14,7 +14,7 @@ flake8==4.0.1  # Lint
 freezegun==1.1.0  # Freeze time in tests
 furo==2021.11.23
 isort==5.10.1  # Lint imports
-keyring==23.3.0
+keyring==23.4.0
 mypy==0.910 # Type checking
 pip_check_reqs==2.3.2
 pydocstyle==6.1.1  # Lint docstrings