chore(deps): update dependency org.scalameta:sbt-scalafmt to v2.5.6

Author: renovate[bot]

project/plugins.sbt

@@ -4,6 +4,6 @@ lazy val sbtGcsPlugin = ProjectRef( file( "../sbt-gcs-plugin" ), "sbt-gcs-plugin
 
 addSbtPlugin( "org.latestbit" % "sbt-gcs-plugin" % "1.12.0" )
 
-addSbtPlugin( "org.scalameta" % "sbt-scalafmt" % "2.5.4" )
+addSbtPlugin( "org.scalameta" % "sbt-scalafmt" % "2.5.6" )
 
 addSbtPlugin( "com.typesafe.sbt" % "sbt-git" % "1.0.2" )

sbt-gcs-plugin/project/plugins.sbt

@@ -1,6 +1,6 @@
 addSbtPlugin( "org.xerial.sbt" % "sbt-sonatype" % "3.12.2" )
 addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.3.1")
 
-addSbtPlugin( "org.scalameta" % "sbt-scalafmt" % "2.5.4" )
+addSbtPlugin( "org.scalameta" % "sbt-scalafmt" % "2.5.6" )
 
 addSbtPlugin( "com.typesafe.sbt" % "sbt-git" % "1.0.2" )