Update werkzeug requirement from ~=3.0.1 to ~=3.0.4

Updates the requirements on [werkzeug](https://github.com/pallets/werkzeug) to permit the latest version.
- [Release notes](https://github.com/pallets/werkzeug/releases)
- [Changelog](https://github.com/pallets/werkzeug/blob/main/CHANGES.rst)
- [Commits](pallets/werkzeug@3.0.1...3.0.4)

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

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

Author: dependabot[bot]

src/requirements.txt

@@ -9,7 +9,7 @@ waitress ~= 2.1
 beautifulsoup4 ~= 4.12
 icalendar ~= 5.0.12
 pytz ~= 2023.3
-werkzeug ~= 3.0.3
+werkzeug ~= 3.0.4
 bugsnag[flask] ~= 4.7.1
 flask_monitoringdashboard >= 3.3.2
 sentry-sdk[flask]