fix: requirements.txt to reduce vulnerabilities

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

requirements.txt

@@ -21,7 +21,7 @@ SQLAlchemy==2.0.19
 WTForms==3.0.1
 passlib==1.7.4
 bcrypt==4.0.1
-cryptography==41.0.3
+cryptography==42.0.8
 # mysqlclient==2.1.1
 pinecone-client==2.2.2
 bleach==6.0.0