Update typing-extensions requirement from <=4.1.1,>=4.0.0 to >=4.0.0,<4.2.1 in /requirements (#13054)

* Update typing-extensions requirement in /requirements

Updates the requirements on [typing-extensions](https://github.com/python/typing) to permit the latest version.
- [Release notes](https://github.com/python/typing/releases)
- [Changelog](https://github.com/python/typing/blob/master/typing_extensions/CHANGELOG.md)
- [Commits](python/typing@4.0.0...4.2.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements/base.txt

@@ -7,4 +7,4 @@ tensorboard>=2.2.0, <2.10.0
 torchmetrics>=0.4.1, <=0.7.2
 pyDeprecate>=0.3.1, <=0.3.2
 packaging>=17.0, <=21.3
-typing-extensions>=4.0.0, <=4.1.1
+typing-extensions>=4.0.0, <4.2.1