Add required keys to publish the docs

Author: marko-bekhta

ci/release/Jenkinsfile

@@ -63,7 +63,7 @@ pipeline {
                                              string(credentialsId: 'Hibernate-CI.github.com', variable: 'JRELEASER_GITHUB_TOKEN'),
                                              file(credentialsId: 'release.gpg.private-key', variable: 'RELEASE_GPG_PRIVATE_KEY_PATH'),
                                              string(credentialsId: 'release.gpg.passphrase', variable: 'JRELEASER_GPG_PASSPHRASE')]) {
-                                sshagent(['ed25519.Hibernate-CI.github.com']) {
+                                sshagent(['ed25519.Hibernate-CI.github.com', 'hibernate.filemgmt.jboss.org', 'jenkins.in.relation.to']) {
                                     sh 'mvn -v'
                                     sh 'cat $HOME/.ssh/config'
                                     dir('.release/scripts') {