Bump werkzeug from 3.1.6 to 3.1.8

Bumps [werkzeug](https://github.com/pallets/werkzeug) from 3.1.6 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@3.1.6...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]

pyproject.toml

@@ -48,7 +48,7 @@ tests = [
   "pytest==9.0.2",
   "pytest-cov==7.1.0",
   "coverage==7.13.5",
-  "werkzeug==3.1.6",
+  "werkzeug==3.1.8",
   "flask[async]==3.1.3",
   "marshmallow",
   "webargs==8.7.1",