gh-115999: Specialize STORE_ATTR in free-threaded builds.
#2360
| Job | Run time |
|---|---|
| 7m 41s | |
| 11m 42s | |
| 20m 29s | |
| 11m 51s | |
| 17m 52s | |
| 10m 11s | |
| 7m 39s | |
| 5m 19s | |
| 12m 30s | |
| 9m 15s | |
| 11m 22s | |
| 9m 33s | |
| 8m 43s | |
| 5m 51s | |
| 9m 25s | |
| 7m 3s | |
| 2h 46m 26s |