[release] 0.41.0 - Remove dependency version enforcement, upgrading m…

…inimum python version (#301)

### Improvements
  - ***Upgraded minimum required python version to 3.7***
  - Removed dependency version enforcement for protobuf and grpcio






>Included In This Release
>- 4b6e51c kat-statsig
>   - remove pin (#300)

statsig/version.py

@@ -1 +1 @@
-__version__ = '0.40.0'
+__version__ = '0.41.0'