Bump flask from 2.2.1 to 2.3.2 in /examples/benchmark (miguelgrinberg#131) #nolog

Bumps [flask](https://github.com/pallets/flask) from 2.2.1 to 2.3.2.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](pallets/flask@2.2.1...2.3.2)

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

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

Author: dependabot[bot]

examples/benchmark/requirements.txt

@@ -5,7 +5,7 @@ certifi==2023.7.22
 charset-normalizer==2.1.0
 click==8.1.3
 fastapi==0.79.0
-Flask==2.2.1
+Flask==2.3.2
 gunicorn==20.1.0
 h11==0.13.0
 h2==4.1.0