Bump werkzeug from 2.2.3 to 2.3.7

Bumps [werkzeug](https://github.com/pallets/werkzeug) from 2.2.3 to 2.3.7.
- [Release notes](https://github.com/pallets/werkzeug/releases)
- [Changelog](https://github.com/pallets/werkzeug/blob/main/CHANGES.rst)
- [Commits](pallets/werkzeug@2.2.3...2.3.7)

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

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

requirements/test.txt

@@ -1,5 +1,5 @@
 Flask==2.2.3
-werkzeug==2.2.3
+werkzeug==2.3.7
 coverage==7.3.0
 argparse
 Django>=2.0.6