Bump requests from 2.26.0 to 2.31.0

Bumps [requests](https://github.com/psf/requests) from 2.26.0 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@v2.26.0...v2.31.0)

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

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

Author: dependabot[bot]

requirements.txt

@@ -14,7 +14,7 @@ pika==1.2.0
     # via pyclowder (setup.py)
 pyyaml==5.4.1
     # via pyclowder (setup.py)
-requests==2.26.0
+requests==2.31.0
     # via
     #   pyclowder (setup.py)
     #   requests-toolbelt