iwyu.yml: switched to Fedora to get the latest include-what-you-use / cleaned up includes
#12042
| Job | Run time |
|---|---|
| 9m 47s | |
| 9m 47s |
include-what-you-use / cleaned up includes
#12042
| Job | Run time |
|---|---|
| 9m 47s | |
| 9m 47s |