Bump pillow from 7.1.0 to 7.2.0

Bumps [pillow](https://github.com/python-pillow/Pillow) from 7.1.0 to 7.2.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/master/CHANGES.rst)
- [Commits](python-pillow/Pillow@7.1.0...7.2.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -4,7 +4,7 @@ scipy==1.4.1
 matplotlib==3.2.1
 scikit-learn==0.22.1
 six==1.15.0
-Pillow==7.1.0
+Pillow==7.2.0
 tqdm==4.45.0
 statsmodels==0.11.0
 pydub==0.24.1