Merge pull request #578 from profunktor/update/sbt-scalafmt-2.6.0

Update sbt-scalafmt to 2.6.0

Author: mergify[bot]

project/plugins.sbt

@@ -6,7 +6,7 @@ ThisBuild / libraryDependencySchemes += "org.scala-lang.modules" %% "scala-xml"
 addSbtPlugin("com.github.sbt" % "sbt-ci-release"  % "1.11.2")
 addSbtPlugin("org.typelevel"  % "sbt-tpolecat"    % "0.5.3")
 addSbtPlugin("com.github.sbt" % "sbt-header"      % "5.11.0")
-addSbtPlugin("org.scalameta"  % "sbt-scalafmt"    % "2.5.6")
+addSbtPlugin("org.scalameta"  % "sbt-scalafmt"    % "2.6.0")
 addSbtPlugin("com.47deg"      % "sbt-microsites"  % "1.4.4")
 addSbtPlugin("org.scalameta"  % "sbt-mdoc"        % "2.9.0")
 addSbtPlugin("com.typesafe"   % "sbt-mima-plugin" % "1.1.5")