Update sbt-pgp to 2.2.0

Author: scala-steward

project/plugins.sbt

@@ -2,7 +2,7 @@ addSbtPlugin("com.codecommit" % "sbt-github-actions" % "0.13.0")
 addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "1.1.0")
 addSbtPlugin("com.eed3si9n" % "sbt-unidoc" % "0.4.3")
 addSbtPlugin("com.github.sbt" % "sbt-release" % "1.1.0")
-addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.1.2")
+addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.2.0")
 addSbtPlugin("com.lightbend.sbt" % "sbt-java-formatter" % "0.6.1")
 addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.0.1")
 addSbtPlugin("com.typesafe.sbt" % "sbt-ghpages" % "0.6.3")