ProjectFiles: add .mill to the default glob list
#5274
| Job | Run time |
|---|---|
| 9m 12s | |
| 10m 49s | |
| 7m 44s | |
| 9m 3s | |
| 21s | |
| 9m 54s | |
| 17m 12s | |
| 7m 53s | |
| 20m 9s | |
| 30m 26s | |
| 5m 43s | |
| 20m 20s | |
| 3m 32s | |
| 15m 17s | |
| 3m 40s | |
| 17m 55s | |
| 27m 41s | |
| 17m 36s | |
| 0s | |
| 3h 54m 27s |