update conda packages (#2593)

environment.yml

@@ -15,25 +15,27 @@ dependencies:
     - pytorch>=1.3
     - tensorboard>=1.14
     - future>=0.17.1
-    - pyyaml>=3.13
-    - tqdm>=4.35.0
+    - PyYAML>=5.1
+    - tqdm>=4.41.0
 
     # For dev and testing
+    - black==19.10b0
     - check-manifest
+    - cloudpickle>=1.2
     - coverage
-    - codecov
+    - codecov>=2.1
     - pytest>=3.0.5
     - pytest-cov
     - pytest-flake8
     - flake8
+    - flake8-black
     - autopep8
     - twine==1.13.0
     - pillow<7.0.0
     - scikit-image
     - nltk>=3.3
 
     # Optional
-    - scipy>=0.13.3
     - scikit-learn>=0.20.0
     - matplotlib>=3.1.1
     - omegaconf>=2.0.0
@@ -44,5 +46,5 @@ dependencies:
         - mlflow>=1.0.0
         - comet_ml>=1.0.56
         - wandb>=0.8.21
-        - neptune-client>=0.4.4
+        - neptune-client>=0.4.109
         - horovod>=0.19.1