fix: requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-WERKZEUG-14908843

Author: snyk-bot

requirements.txt

@@ -33,5 +33,5 @@ six==1.15.0
 toml==0.10.1
 typed-ast==1.4.1
 wcwidth==0.2.5
-Werkzeug==1.0.1
+Werkzeug==3.1.5
 zipp==3.1.0