Bump werkzeug from 3.1.5 to 3.1.8

Bumps [werkzeug](https://github.com/pallets/werkzeug) from 3.1.5 to 3.1.8.
- [Release notes](https://github.com/pallets/werkzeug/releases)
- [Changelog](https://github.com/pallets/werkzeug/blob/main/CHANGES.rst)
- [Commits](pallets/werkzeug@3.1.5...3.1.8)

---
updated-dependencies:
- dependency-name: werkzeug
  dependency-version: 3.1.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements.txt

@@ -5,7 +5,7 @@ Flask-Login==0.6.3
 Flask-WTF==1.2.2
 Flask-SocketIO==5.6.0
 WTForms==3.2.1
-Werkzeug==3.1.5
+Werkzeug==3.1.8
 
 # OpenAI integration
 openai>=1.55.3