Bump requests from 2.27.1 to 2.31.0 in /libraries/botbuilder-ai

Bumps [requests](https://github.com/psf/requests) from 2.27.1 to 2.31.0.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](psf/requests@v2.27.1...v2.31.0)

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

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

Author: dependabot[bot]

libraries/botbuilder-ai/requirements.txt

@@ -1,6 +1,6 @@
 msrest==0.6.*
 botbuilder-schema==4.15.0
 botbuilder-core==4.15.0
-requests==2.27.1
+requests==2.31.0
 aiounittest==1.3.0
 azure-cognitiveservices-language-luis==0.7.0