Replace apt-fast with apt-get (#238)
#559
| Job | Run time |
|---|---|
| 7m 10s | |
| 7m 35s | |
| 8m 25s | |
| 8m 34s | |
| 8m 52s | |
| 8m 56s | |
| 8m 41s | |
| 10m 26s | |
| 9m 2s | |
| 8m 49s | |
| 7m 40s | |
| 8m 13s | |
| 4m 7s | |
| 4m 37s | |
| 4m 9s | |
| 12m 40s | |
| 12m 2s | |
| 11m 54s | |
| 2h 31m 52s |