chore(deps-dev): update typing-extensions requirement (#885)

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@4.6.0...4.7.0)

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

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

Pipfile

@@ -15,7 +15,7 @@ pytest = "~=7.2"
 pytest-cov = "~=4.1"
 python-dateutil = "~=2.8"
 tox = "~=4.6"
-typing-extensions = "~=4.6"
+typing-extensions = "~=4.7"
 types-python-dateutil = "~=2.8"
 
 [packages]