fix: requirements-dev.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-CRYPTOGRAPHY-7161587

requirements-dev.txt

@@ -35,7 +35,7 @@ click==7.1.2
     # via flask
 contextlib2==21.6.0
     # via sanitized-package
-cryptography==39.0.2
+cryptography==42.0.8
     # via
     #   moto
     #   sanitized-package