Fix nimbus fetching mechanism for ReadTheDocs
#8186
| Job | Run time |
|---|---|
| 55s | |
| 6m 26s | |
| 7m 10s | |
| 6m 15s | |
| 7m 41s | |
| 6m 26s | |
| 7m 34s | |
| 8m 46s | |
| 3m 5s | |
| 8m 44s | |
| 11m 36s | |
| 3m 2s | |
| 12s | |
| 1h 17m 52s |