opam admin: enforce repository root check for all commands and add upgrade advice
#4093
| Job | Run time |
|---|---|
| 3s | |
| 4s | |
| 2m 56s | |
| 2m 30s | |
| 23s | |
| 3m 42s | |
| 2m 36s | |
| 25m 6s | |
| 2m 20s | |
| 32m 31s | |
| 2m 30s | |
| 3m 10s | |
| 2m 22s | |
| 2m 31s | |
| 2m 19s | |
| 3m 21s | |
| 2m 18s | |
| 2m 23s | |
| 34m 43s | |
| 40m 57s | |
| 41m 10s | |
| 45m 30s | |
| 46m 21s | |
| 41m 15s | |
| 43m 27s | |
| 5m 3s | |
| 2m 56s | |
| 10m 9s | |
| 1m 4s | |
| 1m 26s | |
| 9m 2s | |
| 52s | |
| 1m 32s | |
| 1m 52s | |
| 2m 20s | |
| 1m 22s | |
| 1m 21s | |
| 1m 37s | |
| 2m 4s | |
| 1m 31s | |
| 2m 2s | |
| 1m 25s | |
| 7h 14m 6s |