Bump werkzeug from 2.2.3 to 3.0.1 in /sample-apps/flask

Bumps [werkzeug](https://github.com/pallets/werkzeug) from 2.2.3 to 3.0.1.
- [Release notes](https://github.com/pallets/werkzeug/releases)
- [Changelog](https://github.com/pallets/werkzeug/blob/main/CHANGES.rst)
- [Commits](pallets/werkzeug@2.2.3...3.0.1)

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

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

sample-apps/flask/requirements.txt

@@ -5,7 +5,7 @@ Flask
 idna
 requests
 urllib3
-Werkzeug==2.2.3
+Werkzeug==3.0.1
 flask-sqlalchemy==2.5.1
 SQLAlchemy==1.4
 aws_xray_sdk==2.6.0