Merge pull request #1 from FilippoMB/dependabot/pip/tensorflow-1.15.2

Bump tensorflow from 1.15.0 to 1.15.2

Author: danielegrattarola

requirements.txt

@@ -39,7 +39,7 @@ scipy==1.4.1
 six==1.15.0
 spektral==0.1.2
 tensorboard==1.15.0
-tensorflow==1.15.0
+tensorflow==1.15.2
 tensorflow-estimator==1.15.1
 termcolor==1.1.0
 tqdm==4.46.0