Update sbt-header to 5.11.0 (#300)

* Update sbt-header to 5.11.0

* fix imports

---------

Co-authored-by: scala-steward-asf[bot] <147768647+scala-steward-asf[bot]@users.noreply.github.com>
Co-authored-by: 虎鸣 <hepin.p@alibaba-inc.com>
diff --git a/project/CopyrightHeader.scala b/project/CopyrightHeader.scala
index 6eae881..a39bd1c 100644
--- a/project/CopyrightHeader.scala
+++ b/project/CopyrightHeader.scala
@@ -11,8 +11,8 @@
  * Copyright (C) 2020-2021 Lightbend Inc. <https://www.lightbend.com>
  */
 
-import de.heikoseeberger.sbtheader.HeaderPlugin.autoImport._
-import de.heikoseeberger.sbtheader.{ CommentCreator, HeaderPlugin, NewLine }
+import sbtheader.HeaderPlugin.autoImport._
+import sbtheader.{ CommentCreator, HeaderPlugin, NewLine }
 import org.apache.commons.lang3.StringUtils
 import sbt.Keys._
 import sbt._
diff --git a/project/plugins.sbt b/project/plugins.sbt
index edb63cd..d926cb1 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -9,7 +9,7 @@
 
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.5")
 addSbtPlugin("com.lightbend.sbt" % "sbt-java-formatter" % "0.8.0")
-addSbtPlugin("de.heikoseeberger" % "sbt-header" % "5.10.0")
+addSbtPlugin("com.github.sbt" % "sbt-header" % "5.11.0")
 
 addSbtPlugin("com.github.sbt" % "sbt-dynver" % "5.1.1")
 addSbtPlugin("net.bzzt" % "sbt-reproducible-builds" % "0.32")