Merge pull request #66 from asingh33/dependabot/pip/pillow-8.1.1

Bump pillow from 7.1.0 to 8.1.1

Author: asingh33

requirements.txt

@@ -17,7 +17,7 @@ mock==2.0.0
 numpy==1.16.2
 opencv-python==3.4.11.41
 pbr==5.1.3
-Pillow==7.1.0
+Pillow==8.1.1
 protobuf==3.7.1
 pyparsing==2.4.0
 PyQt5==5.12.1