Fix certmanager test to use the :noop tagged image
#2529
| Job | Run time |
|---|---|
| 1m 16s | |
| 2m 30s | |
| 1m 31s | |
| 2m 18s | |
| 2m 29s | |
| 36s | |
| 26s | |
| 3m 15s | |
| 1m 20s | |
| 3m 21s | |
| 1m 41s | |
| 14m 8s | |
| 14m 8s | |
| 2m 40s | |
| 2m 52s | |
| 4m 22s | |
| 6m 11s | |
| 3m 45s | |
| 2m 25s | |
| 1h 11m 14s |