Scalafmt v2.1.0-RC1

Merged Pull Requests

• Add release-drafter.yml (#1483) @tanishiking
• Add --check cli option (#1478) @droptheplot
• fix running with the diff branch file filter (#1472) @stephennancekivell
• Don't treat commas in lambda bodies as "trailing commas" (#1479) @adampauls
• Update ISSUE_TEMPLATE to current version support (#1476) @anilkumarmyla
• Keep indentation for comments within method chain (#1470) @droptheplot
• Tweak a test that makes sure multiple exclude flags works as expected (#1481) @tanishiking
• Allow for multiple --exclude flags (#1469) @sortega
• fix include resolution for cli and sbt plugin (#1450) @nadavwr
• Fixed unindentTopLevelOperator behavior without indentOperator=spray (#1440) @poslegm
• Update CHANGELOG (#1475) @tanishiking