Update typing-extensions requirement from ==3.10.* to ==4.12.* (#98)

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@3.10.0.0...4.12.2)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

docs/requirements.txt

@@ -8,4 +8,4 @@ pandas
 pip >=21.3.1
 pydata_sphinx_theme>=0.15.2
 sphinxcontrib-napoleon
-typing-extensions==3.10.*
+typing-extensions==4.12.*