Merge pull request #615 from scala-steward/update/sbt-scalafmt-2.6.0

Update sbt-scalafmt to 2.6.0

Author: tgodzik

project/plugins.sbt

@@ -2,6 +2,6 @@ addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.11.2")
 addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.1.5")
 addSbtPlugin("io.get-coursier" % "sbt-shading" % "2.1.5")
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.14.6")
-addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.6")
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.6.0")
 
 libraryDependencies += "org.scala-sbt" %% "scripted-plugin" % sbtVersion.value