Update sbt-example to 7.0.0

Author: scala-steward

project/plugins.sbt

@@ -8,7 +8,7 @@ addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.1.2")
 
 addSbtPlugin("org.lyranthe.sbt" % "partial-unification" % "1.1.2")
 
-addSbtPlugin("com.thoughtworks.example" % "sbt-example" % "6.0.1")
+addSbtPlugin("com.thoughtworks.example" % "sbt-example" % "7.0.0")
 
 addSbtPlugin("com.thoughtworks.sbt-scala-js-map" % "sbt-scala-js-map" % "4.0.0")