testflight: use mock resource type for image
(there was only one occurrence)
@@ -7,8 +7,8 @@ resources:
create_files: {"task.yml":((task_content))}
- name: some-image
- type: registry-image
- source: {repository: busybox}
+ type: mock
+ source: {mirror_self: true}
jobs:
- name: upstream-job
