Merge pull request #54 from PaddlePaddle/dependabot/pip/numpy-1.21.0

Bump numpy from 1.16.4 to 1.21.0

Author: WorldEditors

requirements.txt

@@ -1,5 +1,5 @@
 six==1.12.0
 pyglet==1.2.0
 setuptools==41.0.1
-numpy==1.16.4
+numpy==1.21.0
 mock==3.0.5