Update sbt-pgp to 1.1.2 (#47)

Author: scala-steward

project/plugins.sbt

@@ -1,7 +1,7 @@
 addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.2.1")
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.25")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "0.6.0")
-addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.1.1")
+addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.1.2")
 addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.3.0")
 
 addSbtCoursier