chore(ml): added testing and github workflow (#2969)

* added testing

* github action for python, made mypy happy

* formatted with black

* minor fixes and styling

* test model cache

* cache test dependencies

* narrowed model cache tests

* moved endpoint tests to their own class

* cleaned up fixtures

* formatting

* removed unused dep

machine-learning/app/config.py

@@ -18,6 +18,7 @@ class Settings(BaseSettings):
     port: int = 3003
     workers: int = 1
     min_face_score: float = 0.7
+    test_full: bool = False
 
     class Config(BaseSettings.Config):
         env_prefix = "MACHINE_LEARNING_"