Upper bound networkx version at 2.4 (#1492)

* Upper bound networkx version at 2.4

* Update install_requires in setup.py

Author: bhancock8

requirements.txt

@@ -21,7 +21,7 @@ scikit-learn>=0.20.2,<0.22.0
 torch>=1.1.0,<1.2.0
 
 # LF dependency learning
-networkx>=2.2,<3.0
+networkx>=2.2,<2.4
 
 # Model introspection tools
 tensorboardX>=1.6,<2.0

setup.py

@@ -41,7 +41,7 @@
         "tqdm>=4.33.0,<5.0.0",
         "scikit-learn>=0.20.2,<0.22.0",
         "torch>=1.1.0,<1.2.0",
-        "networkx>=2.2,<3.0",
+        "networkx>=2.2,<2.4",
         "tensorboardX>=1.6,<2.0",
     ],
     python_requires=">=3.6",