Upgrade sbt-pgp plugin version

Author: xerial

project/plugins.sbt

@@ -3,7 +3,7 @@ addSbtPlugin("com.github.gseitz" % "sbt-release" % "0.8.5")
 
 addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "0.5.0")
 
-addSbtPlugin("com.typesafe.sbt" % "sbt-pgp" % "0.8.3")
+addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.0.0")
 
 addSbtPlugin("de.johoop" % "findbugs4sbt" % "1.3.0")