Update sbt-scalafmt to 2.3.4

Author: scala-steward

project/plugins.sbt

@@ -11,7 +11,7 @@ addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.0.0")
 
 addSbtPlugin("io.github.cquiroz" % "sbt-tzdb" % "0.4.0")
 
-addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.3.3")
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.3.4")
 
 addSbtPlugin("io.github.davidgregory084" % "sbt-tpolecat" % "0.1.11")