build(deps): update cryptography requirement from >=49.0.0 to >=50.0.0 (#566)

Updates the requirements on [cryptography](https://github.com/pyca/cryptography) to permit the latest version.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@49.0.0...50.0.0)

---
updated-dependencies:
- dependency-name: cryptography
  dependency-version: 50.0.0
  dependency-type: direct:production
...

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Author: dependabot[bot]

requirements.txt

@@ -5,7 +5,7 @@ backoff >= 2.2.1
 boto3 >= 1.43.66
 click >= 8.4.2
 colorama >= 0.4.6, < 0.4.7
-cryptography >= 49.0.0
+cryptography >= 50.0.0
 fastapi[all] >= 0.141.1
 paramiko >= 5.0.0
 prettytable >= 3.18.0