build(deps): bump werkzeug from 2.2.3 to 2.3.8 in /requirements

Bumps [werkzeug](https://github.com/pallets/werkzeug) from 2.2.3 to 2.3.8.
- [Release notes](https://github.com/pallets/werkzeug/releases)
- [Changelog](https://github.com/pallets/werkzeug/blob/main/CHANGES.rst)
- [Commits](pallets/werkzeug@2.2.3...2.3.8)

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

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

requirements/api.txt

@@ -1,4 +1,4 @@
 flask==2.0.0
 waitress==2.1.2
-werkzeug==2.2.3
+werkzeug==2.3.8
 flask_cors==3.0.10