Update dependency Pillow to v7

This MR contains the following updates:

Package	Type	Update	Change
Pillow (source)	dependencies	major	^6.1 -> ^7.0

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added 6 commits

• 0ff20acc...813724f5 - 5 commits from branch master
• 724e7520 - Update dependency Pillow to v7

Compare with previous version

merged

mentioned in commit 6a73b3e3