Merge pull request #58 from scala-steward/update/sbt-scalafmt-2.2.1

Update sbt-scalafmt to 2.2.1

Author: mergify[bot]

project/plugins.sbt

@@ -1,7 +1,7 @@
 addSbtPlugin("io.github.davidgregory084" % "sbt-tpolecat" % "0.1.8")
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.7")
 addSbtPlugin("org.wartremover" % "sbt-wartremover" % "2.4.3")
-addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.2.0")
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.2.1")
 addSbtPlugin("org.scalameta" % "sbt-mdoc" % "1.3.6")
 addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.4.31")
 addSbtPlugin("com.thoughtworks.sbt-api-mappings" % "sbt-api-mappings" % "3.0.0")