fix: requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-CRYPTOGRAPHY-6050294
- https://snyk.io/vuln/SNYK-PYTHON-CRYPTOGRAPHY-6126975

requirements.txt

@@ -20,7 +20,7 @@ cffi==1.15.1
     # via cryptography
 charset-normalizer==3.0.1
     # via requests
-cryptography==41.0.6
+cryptography==42.0.0
     # via social-auth-core
 defusedxml==0.7.1
     # via