fix: requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-WERKZEUG-6808933

requirements.txt

@@ -3,7 +3,7 @@ connexion==2.14.2
 Flask==2.2.5
 Flask-Cors==3.0.10
 tinydb==4.8.0
-Werkzeug==2.2.3
+Werkzeug==3.0.3
 
 # Misc utils
 setuptools==69.2.0