Update sbt-scalafmt to 2.5.2 (#551)

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

Author: scala-steward

project/plugins.sbt

@@ -4,7 +4,7 @@ addSbtPlugin("com.thesamet" % "sbt-protoc" % "1.0.6")
 
 libraryDependencies += "com.thesamet.scalapb" %% "compilerplugin" % "0.11.13"
 
-addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.0")
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.2")
 
 addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.5.12")