ci: use actions/cache for restore/save cache, gh for deleting cache
#144
| Job | Run time |
|---|---|
| 16s | |
| 1m 4s | |
| 1m 24s | |
| 4m 34s | |
| 6m 30s | |
| 11m 42s | |
| 7m 30s | |
| 15m 8s | |
| 7m 14s | |
| 6m 56s | |
| 7m 10s | |
| 1h 9m 28s |