chore(deps): bump regex from 2023.12.25 to 2024.4.16 in /hack/api-docs (#3404)

Bumps [regex](https://github.com/mrabarnett/mrab-regex) from 2023.12.25 to 2024.4.16.
- [Changelog](https://github.com/mrabarnett/mrab-regex/blob/hg/changelog.txt)
- [Commits](https://github.com/mrabarnett/mrab-regex/compare/2023.12.25...2024.4.16)

---
updated-dependencies:
- dependency-name: regex
  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>

hack/api-docs/requirements.txt

@@ -31,7 +31,7 @@ pymdown-extensions==10.7.1
 python-dateutil==2.9.0.post0
 PyYAML==6.0.1
 pyyaml_env_tag==0.1
-regex==2023.12.25
+regex==2024.4.16
 requests==2.31.0
 six==1.16.0
 termcolor==2.4.0