[package] Add analytics dependency to package.json. (#4794) (#4797)

com.unity.ml-agents/CHANGELOG.md

 ### Bug Fixes
 #### com.unity.ml-agents (C#)
 - Add analytics package dependency to the package manifest. (#4794)
+#### ml-agents / ml-agents-envs / gym-unity (Python)
+- Fixed the docker build process. (#4791)
 
 ## [1.7.0-preview] - 2020-12-21
 ### Major Changes

com.unity.ml-agents/package.json

     "com.unity.modules.imageconversion": "1.0.0",
     "com.unity.modules.jsonserialize": "1.0.0",
     "com.unity.modules.physics": "1.0.0",
-    "com.unity.modules.physics2d": "1.0.0"
+    "com.unity.modules.physics2d": "1.0.0",
+    "com.unity.analytics": "1.0.0"
   }
 }