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

@@ -34,7 +34,7 @@ click==7.0
     # via flask
 contextlib2==0.6.0.post1
     # via digitalmarketplace-utils
-cryptography==39.0.1
+cryptography==42.0.8
     # via digitalmarketplace-utils
 defusedxml==0.6.0
     # via odfpy