Revert "Revert "Update sbt-pgp to 2.3.0 (#850)" (#857)" (#859)

This reverts commit 56586b4.

Author: sksamuel

project/plugins.sbt

@@ -1,6 +1,6 @@
 resolvers += Classpaths.sbtPluginReleases
 
-addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.2.1")
+addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.3.0")
 
 addSbtPlugin("net.virtual-void" % "sbt-dependency-graph" % "0.9.2")