Merge pull request #541 from scala-steward/update/sbt-java-formatter-0.13.1

sbt-java-formatter 0.13.1 (was 0.12.0)

Author: mkurz

project/plugins.sbt

@@ -2,6 +2,6 @@
 
 addSbtPlugin("com.typesafe"   % "sbt-mima-plugin"    % "1.1.6")
 addSbtPlugin("org.scalameta"  % "sbt-scalafmt"       % "2.6.2")
-addSbtPlugin("com.github.sbt" % "sbt-java-formatter" % "0.12.0")
+addSbtPlugin("com.github.sbt" % "sbt-java-formatter" % "0.13.1")
 addSbtPlugin("com.github.sbt" % "sbt-ci-release"     % "1.12.0")
 addSbtPlugin("com.github.sbt" % "sbt-header"         % "5.11.0")