Bump cryptography from 41.0.6 to 42.0.0 in llvm/utils/git/requirement…

…s.txt (#12714)

Bumps [cryptography](https://github.com/pyca/cryptography) from 41.0.6
to 42.0.0 to resolve identified security vulnerability in 3rd party
dependency.

Refer to [cryptography's
changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst).

llvm/utils/git/requirements.txt

@@ -14,7 +14,7 @@ cffi==1.15.1
  # pynacl
 charset-normalizer==2.1.1
  # via requests
-cryptography==41.0.6
+cryptography==42.0.0
  # via pyjwt
 deprecated==1.2.13
  # via pygithub