sdist: make clean_tar_info a classmethod again because it is used as such for generating PyPI fixtures downstream
#22
| Job | Run time |
|---|---|
| 1m 2s | |
| 1m 0s | |
| 1m 6s | |
| 1m 1s | |
| 1m 5s | |
| 1m 27s | |
| 1m 34s | |
| 56s | |
| 52s | |
| 50s | |
| 51s | |
| 1m 14s | |
| 3m 9s | |
| 3m 4s | |
| 2m 24s | |
| 2m 6s | |
| 2m 46s | |
| 3m 4s | |
| 3m 3s | |
| 32m 34s |