Bump flask from 3.1.0 to 3.1.1 in /public_dropin_gpu_environments/vllm

Bumps [flask](https://github.com/pallets/flask) from 3.1.0 to 3.1.1.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](pallets/flask@3.1.0...3.1.1)

---
updated-dependencies:
- dependency-name: flask
  dependency-version: 3.1.1
  dependency-type: indirect
...

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

Author: dependabot[bot]

public_dropin_gpu_environments/vllm/requirements.txt

@@ -35,7 +35,7 @@ distro==1.9.0
 docker==7.1.0
 exceptiongroup==1.2.2
 filechunkio==1.8
-flask==3.1.0
+flask==3.1.1
 frozenlist==1.5.0
 google-api-core==1.34.0
 google-auth==1.28.1