Fix stage job failing to resolve Gradle plugins

The stage task didn't pass the ARTIFACTORY_SERVER credentials
that settings.gradle needs to resolve io.spring.javaformat and
other plugins, causing stage-release to fail. Pass the same
ARTIFACTORY_* params already used by the build task.

Signed-off-by: Roy Clarkson <roy.clarkson@broadcom.com>

Author: royclarkson

ci/tasks/stage.yml

@@ -16,6 +16,10 @@ params:
   RELEASE_TYPE: ((release-type))
   USER_NAME: ((git-username))
   USER_EMAIL: ((git-email))
+  ARTIFACTORY_SERVER: ((artifactory-server))
+  ARTIFACTORY_SERVER_PATH: libs-release
+  ARTIFACTORY_USERNAME: ((artifactory-username))
+  ARTIFACTORY_PASSWORD: ((artifactory-password))
 caches:
   - path: maven
   - path: gradle