Merge pull request #1216 from Trusted-AI/dependabot/pip/pillow-8.3.1

Bump pillow from 8.3.0 to 8.3.1

Author: beat-buesser

requirements.txt

@@ -4,7 +4,7 @@ scipy==1.7.0
 matplotlib==3.4.2
 scikit-learn>=0.22.2,<0.24.3
 six==1.16.0
-Pillow==8.3.0
+Pillow==8.3.1
 tqdm==4.61.2
 statsmodels==0.12.2
 pydub==0.25.1