Restore setup of GPG keys in sbt

Signed-off-by: Wojciech Mazur <wmazur@virtuslab.com>

Author: WojciechMazur

project/Build.scala

@@ -3,6 +3,7 @@ import java.nio.file._
 import Process._
 import Modes._
 import ScaladocGeneration._
+import com.jsuereth.sbtpgp.PgpKeys
 import sbt.Keys.*
 import sbt.*
 import sbt.nio.FileStamper
@@ -340,6 +341,8 @@ object Build {
         password <- sys.env.get("SONATYPE_PW")
       } yield Credentials("Sonatype Nexus Repository Manager", "central.sonatype.com", username, password)
     ).toList,
+    PgpKeys.pgpPassphrase := sys.env.get("PGP_PW").map(_.toCharArray()),
+    PgpKeys.useGpgPinentry := true,
 
     // Do not cut off the bottom of large stack traces (default is 1024)
     javaOptions ++= "-XX:MaxJavaStackTraceDepth=1000000" :: agentOptions,