Play JSON 2.9.3

Changes

• #785 Backport ci-release plugin by @cchantep
• #784 Upgrade jackson dependencies to 2.11.4 (as in play-json 2.8.x) by @cchantep
• #719 Fix commitish in release drafter by @mkurz
• #718 [2.9.x] Add release drafter with configs from .github repo by @mkurz
• #714 [2.9.x] Rename master branch to main by @mkurz

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🙇 Thanks to our contributors

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