Merge pull request #1619 from Trusted-AI/dependabot/pip/pillow-9.1.0

Bump pillow from 9.0.1 to 9.1.0

Author: beat-buesser

requirements_test.txt

@@ -5,7 +5,7 @@ scipy==1.8.0
 matplotlib==3.5.1
 scikit-learn>=0.22.2,<1.1.0
 six==1.16.0
-Pillow==9.0.1
+Pillow==9.1.0
 tqdm==4.63.1
 statsmodels==0.13.2
 pydub==0.25.1