fix: forms-flow-documents/requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-CRYPTOGRAPHY-5914629

forms-flow-documents/requirements.txt

@@ -22,7 +22,7 @@ certifi==2023.5.7
 cffi==1.15.1
 charset-normalizer==3.1.0
 click==8.1.3
-cryptography==41.0.1
+cryptography==41.0.4
 ecdsa==0.18.0
 exceptiongroup==1.1.1
 flask-jwt-oidc==0.3.0