HHH-19341 Use publish Gradle plugin for snapshot publishing

Author: marko-bekhta

ci/snapshot-publish.Jenkinsfile

@@ -42,13 +42,9 @@ pipeline {
                     withCredentials([
                             // https://github.com/gradle-nexus/publish-plugin#publishing-to-maven-central-via-sonatype-ossrh
                             // TODO: HHH-19309:
-                            //  Once we switch to maven-central publishing (from nexus2) we need to add a new credentials
-                            //  to use the following env variable names to set the user/password:
-                            //  - JRELEASER_MAVENCENTRAL_USERNAME
-                            //  - JRELEASER_MAVENCENTRAL_TOKEN
-                            //  Also use the new `credentialsId` for Maven Central, e.g.:
-                            //  usernamePassword(credentialsId: '???????', passwordVariable: 'JRELEASER_MAVENCENTRAL_TOKEN', usernameVariable: 'JRELEASER_MAVENCENTRAL_USERNAME'),
-                            usernamePassword(credentialsId: 'ossrh.sonatype.org', passwordVariable: 'JRELEASER_NEXUS2_PASSWORD', usernameVariable: 'JRELEASER_NEXUS2_USERNAME'),
+                            //  Once we switch to maven-central publishing (from nexus2) we need to update credentialsId:
+                            // https://docs.gradle.org/current/samples/sample_publishing_credentials.html#:~:text=via%20environment%20variables
+                            usernamePassword(credentialsId: 'ossrh.sonatype.org', passwordVariable: 'ORG_GRADLE_PROJECT_snapshotsPassword', usernameVariable: 'ORG_GRADLE_PROJECT_snapshotsUsername'),
                             string(credentialsId: 'Hibernate-CI.github.com', variable: 'JRELEASER_GITHUB_TOKEN'),
                             // 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'),

local-build-plugins/src/main/groovy/local.publishing.gradle

@@ -67,6 +67,10 @@ publishingExtension.repositories {
         name = "staging"
         url = rootProject.layout.buildDirectory.dir("staging-deploy${File.separator}maven")
     }
+    maven {
+        name = 'snapshots'
+        url = "https://oss.sonatype.org/content/repositories/snapshots/"
+    }
 }
 
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