Add missing plugins

Author: jllopes

project/plugins.sbt

@@ -1,5 +1,7 @@
 import sbt._
 
-addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.2.0")
+addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "2.3")
 
-addSbtPlugin("com.codacy" % "codacy-sbt-plugin" % "13.0.2")
+addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.1.1")
+
+addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.2.0")