Update typing-extensions requirement from >=3.1 to >=4.16.0

Updates the requirements on [typing-extensions](https://github.com/python/typing_extensions) to permit the latest version.
- [Release notes](https://github.com/python/typing_extensions/releases)
- [Changelog](https://github.com/python/typing_extensions/blob/main/CHANGELOG.md)
- [Commits](python/typing_extensions@3.5.0...4.16.0)

---
updated-dependencies:
- dependency-name: typing-extensions
  dependency-version: 4.16.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -3,4 +3,4 @@ inflection>=0.3
 unidecode>=1.0
 Jinja2>=2.10
 ordered-set==4.*
-typing-extensions>=3.1
+typing-extensions>=4.16.0