ci: Normalise slash-containing github.head_ref values
#3700
| Job | Run time |
|---|---|
| 3m 2s | |
| 49s | |
| 1m 16s | |
| 8s | |
| 5m 15s |
github.head_ref values
#3700
| Job | Run time |
|---|---|
| 3m 2s | |
| 49s | |
| 1m 16s | |
| 8s | |
| 5m 15s |