HHH-19341 Align env variable names to match the release scripts

Author: marko-bekhta

ci/release/Jenkinsfile

@@ -223,7 +223,7 @@ pipeline {
 							// https://docs.gradle.org/current/userguide/publishing_gradle_plugins.html#account_setup
 							usernamePassword(credentialsId: 'gradle-plugin-portal-api-key', passwordVariable: 'GRADLE_PUBLISH_SECRET', usernameVariable: 'GRADLE_PUBLISH_KEY'),
 							gitUsernamePassword(credentialsId: 'username-and-token.Hibernate-CI.github.com', gitToolName: 'Default'),
-							file(credentialsId: 'release.gpg.private-key', variable: 'SIGNING_GPG_PRIVATE_KEY_PATH'),
+							file(credentialsId: 'release.gpg.private-key', variable: 'RELEASE_GPG_PRIVATE_KEY_PATH'),
 							string(credentialsId: 'release.gpg.passphrase', variable: 'JRELEASER_GPG_PASSPHRASE'),
 							string(credentialsId: 'Hibernate-CI.github.com', variable: 'JRELEASER_GITHUB_TOKEN')
 						]) {