Bump flask from 3.1.0 to 3.1.1 in /samples/volumes/src in the all group (#2323)

Bumps the all group in /samples/volumes/src with 1 update: [flask](https://github.com/pallets/flask).


Updates `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: direct:production
  update-type: version-update:semver-patch
  dependency-group: all
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

samples/volumes/src/requirements.txt

@@ -1 +1 @@
-Flask===3.1.0
+Flask===3.1.1