Bump requests in /samples/python/21.corebot-app-insights (#3980)

Bumps [requests](https://github.com/psf/requests) from 2.31.0 to 2.32.2.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](https://github.com/psf/requests/compare/v2.31.0...v2.32.2)

---
updated-dependencies:
- dependency-name: requests
  dependency-type: direct:production
...

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samples/python/21.corebot-app-insights/requirements.txt

@@ -1,5 +1,5 @@
 asyncio>=3.4.3
-requests==2.31.0
+requests==2.32.2
 botbuilder-core>=4.15.0
 botframework-connector>=4.15.0
 botbuilder-schema>=4.15.0