Bump typeguard from 3.0.2 to 4.2.1 (#1418)

Bumps [typeguard](https://github.com/agronholm/typeguard) from 3.0.2 to 4.2.1.
- [Release notes](https://github.com/agronholm/typeguard/releases)
- [Changelog](https://github.com/agronholm/typeguard/blob/master/docs/versionhistory.rst)
- [Commits](https://github.com/agronholm/typeguard/compare/3.0.2...4.2.1)

---
updated-dependencies:
- dependency-name: typeguard
  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>

docs/requirements.txt

@@ -46,7 +46,7 @@ sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==1.0.7
 sphinxcontrib-serializinghtml==1.1.10
 tornado==6.4
-typeguard==3.0.2
+typeguard==4.2.1
 Unidecode==1.3.8
 urllib3==2.2.1
 wrapt==1.16.0