gh-145098: Use macos-15-intel instead of unstable macos-26-intel
#248283
| Job | Run time |
|---|---|
| 5s | |
| 5s | |
| 10s |
macos-15-intel instead of unstable macos-26-intel
#248283
| Job | Run time |
|---|---|
| 5s | |
| 5s | |
| 10s |