build(deps): update typing-extensions requirement from ~=4.0 to ~=4.15

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@4.0.0...4.15.0)

---
updated-dependencies:
- dependency-name: typing-extensions
  dependency-version: 4.15.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -4,4 +4,4 @@ apimatic-core-interfaces~=0.1.0, >= 0.1.8
 requests~=2.31
 setuptools>=68.0.0
 jsonpointer~=3.0
-typing-extensions~=4.0
+typing-extensions~=4.15