fix: scripts/audits/requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-URLLIB3-7267250

scripts/audits/requirements.txt

@@ -7,6 +7,6 @@ moto==1.3.14
 
 networkx>=2.6 # not directly required, pinned by Snyk to avoid a vulnerability
 sympy>=1.12 # not directly required, pinned by Snyk to avoid a vulnerability
-urllib3>=1.26.18 # not directly required, pinned by Snyk to avoid a vulnerability
+urllib3>=2.2.2 # not directly required, pinned by Snyk to avoid a vulnerability
 idna>=3.7 # not directly required, pinned by Snyk to avoid a vulnerability
 requests>=2.32.0 # not directly required, pinned by Snyk to avoid a vulnerability