[#2519] Migrate to release scripts for documentation publishing

Author: dreab8

ci/release/Jenkinsfile

@@ -211,7 +211,7 @@ pipeline {
 								string(credentialsId: 'release.gpg.passphrase', variable: 'JRELEASER_GPG_PASSPHRASE'),
 								string(credentialsId: 'Hibernate-CI.github.com', variable: 'JRELEASER_GITHUB_TOKEN')
 						]) {
-							sshagent(['ed25519.Hibernate-CI.github.com', 'hibernate.filemgmt.jboss.org', 'hibernate-ci.frs.sourceforge.net']) {
+							sshagent(['ed25519.Hibernate-CI.github.com', 'hibernate.filemgmt.jboss.org', 'jenkins.in.relation.to', 'hibernate-ci.frs.sourceforge.net']) {
 								// performs documentation upload and Sonatype release
 								// push to github
 								withEnv([

release/build.gradle

@@ -156,11 +156,21 @@ def updateDocumentationTask = tasks.register( 'updateDocumentation' ) {
             into docWebsiteReactiveFolder.dir("javadocs")
         }
 
+		copy {
+			from documentationDir.dir("javadocs")
+			into rootProject.layout.buildDirectory.dir("staging-deploy/documentation/javadocs")
+		}
+
         // Reference Documentation
         copy {
             from documentationDir.dir("asciidoc/reference/html_single")
             into docWebsiteReactiveFolder.dir("reference/html_single")
-        }
+		}
+
+		copy {
+			from documentationDir.dir("asciidoc/reference/html_single")
+			into rootProject.layout.buildDirectory.dir("staging-deploy/documentation/reference/html_single")
+		}
     }
 }