Bump Python requirement numpy to 1.23.5

requirements.txt

@@ -3,7 +3,7 @@ editdistance==0.6.0
 fontTools==4.29.1
 imageio==2.16.0
 networkx==2.6.3
-numpy==1.22.3
+numpy==1.23.5
 opencv-python==4.5.5.64
 PyYAML==6.0
 tensorboard==0.2.1