Bump pillow from 8.1.2 to 8.2.0 (#550)

Bumps [pillow](https://github.com/python-pillow/Pillow) from 8.1.2 to 8.2.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/master/CHANGES.rst)
- [Commits](python-pillow/Pillow@8.1.2...8.2.0)

---
updated-dependencies:
- dependency-name: pillow
  dependency-type: direct:production
...

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Author: dependabot[bot]

requirements-webapp.txt

@@ -28,4 +28,4 @@ typing==3.7.4.3
 tzlocal==2.1
 watchdog==0.10.4
 xtarfile[zstd]==0.0.4
-Pillow==8.1.2
+Pillow==8.2.0

requirements.txt

@@ -1,6 +1,6 @@
 Flask==1.1.2
 Flask-Cors==3.0.9
-Pillow==8.1.2
+Pillow==8.2.0
 apache-libcloud==3.2.0
 applicationinsights==0.11.9
 beautifulsoup4==4.9.3