Adjust Jenkinsfile for move of releng.aggregator to github Change-Id: Id259ec1c495799d4e588dc38bafd39aa52f2d965 Signed-off-by: Alexander Kurtakov <akurtako@redhat.com> Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.debug/+/190625 Tested-by: Platform Bot <platform-bot@eclipse.org>