Bump plugin versions

Author: mdedetrich

project/plugins.sbt

@@ -1,4 +1,4 @@
 addSbtPlugin("com.dwijnand"      % "sbt-dynver"         % "4.1.1")
 addSbtPlugin("de.heikoseeberger" % "sbt-header"         % "5.6.0")
-addSbtPlugin("org.scalameta"     % "sbt-scalafmt"       % "2.4.5")
+addSbtPlugin("org.scalameta"     % "sbt-scalafmt"       % "2.4.6")
 addSbtPlugin("com.codecommit"    % "sbt-github-actions" % "0.14.2")