Bump werkzeug from 3.1.5 to 3.1.6 in /ui

Bumps [werkzeug](https://github.com/pallets/werkzeug) from 3.1.5 to 3.1.6.
- [Release notes](https://github.com/pallets/werkzeug/releases)
- [Changelog](https://github.com/pallets/werkzeug/blob/main/CHANGES.rst)
- [Commits](pallets/werkzeug@3.1.5...3.1.6)

---
updated-dependencies:
- dependency-name: werkzeug
  dependency-version: 3.1.6
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

ui/requirements.txt

@@ -12,4 +12,4 @@ kubernetes==11.0.0
 requests==2.32.4
 stups-tokens>=1.1.19
 wal_e==1.1.1
-werkzeug==3.1.5
+werkzeug==3.1.6