feat!: finalize PEP639, auto-enable it, remove CLI switch environment --PEP-639
#1633
| Job | Run time |
|---|---|
| 2m 37s | |
| 2m 37s |
environment --PEP-639
#1633
| Job | Run time |
|---|---|
| 2m 37s | |
| 2m 37s |