fix linting cryptography (#10921)

.circleci/config.yml

@@ -142,6 +142,7 @@ jobs:
           name: Linting Testing
           command: |
             cd litellm
+            pip install "cryptography<40.0.0"
             python -m pip install types-requests types-setuptools types-redis types-PyYAML
             if ! python -m mypy . \
                 --config-file mypy.ini \