Update sbt-boilerplate to 0.8.0 (#2581)

Co-authored-by: scala-steward-asf[bot] <147768647+scala-steward-asf[bot]@users.noreply.github.com>

Author: scala-steward-asf[bot]

project/plugins.sbt

@@ -18,7 +18,7 @@ addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.1.4")
 addSbtPlugin("com.github.sbt" % "sbt-unidoc" % "0.6.0")
 addSbtPlugin("com.thoughtworks.sbt-api-mappings" % "sbt-api-mappings" % "3.0.2")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.8")
-addSbtPlugin("com.github.sbt" % "sbt-boilerplate" % "0.7.0")
+addSbtPlugin("com.github.sbt" % "sbt-boilerplate" % "0.8.0")
 
 addSbtPlugin("com.github.sbt" % "sbt-header" % "5.11.0")
 addSbtPlugin("com.github.sbt" % "sbt-pull-request-validator" % "2.0.0")