Update scalafmt-core to 3.1.0 (#1032)
Update scalafmt-core to 3.1.0 (#1032)

* Update scalafmt-core to 3.1.0

* Update .scalafmt.conf

Co-authored-by: Frank Thomas <926d34bc94d2a49ae6bbd61ad02b5ae0ae222ec1@gmx.de>
fthomas/refined