Merge pull request #6 from hyunjoonbok/dependabot/pip/tensorflow-2.3.1

Bump tensorflow from 2.0.0 to 2.3.1

Author: hyunjoonbok

requirements.txt

@@ -219,7 +219,7 @@ tb-nightly==1.14.0a20190301
 tblib==1.6.0
 tensorboard==2.0.2
 tensorboardX==2.0
-tensorflow==2.0.0
+tensorflow==2.3.1
 tensorflow-estimator==2.0.1
 tensorflow-hub==0.7.0
 termcolor==1.1.0