Force the compiler binary mtimes to a fixed value for cmake-android-* workflow builds.
#77
| Job | Run time |
|---|---|
| 1m 41s | |
| 9m 20s | |
| 1m 12s | |
| 11m 3s | |
| 10m 20s | |
| 12m 15s | |
| 5m 57s | |
| 7m 4s | |
| 5m 5s | |
| 5m 56s | |
| 4m 16s | |
| 2m 46s | |
| 2m 46s | |
| 2m 53s | |
| 6m 39s | |
| 8m 30s | |
| 8m 31s | |
| 1h 46m 14s |