Separate clang lint? (#119575)
25 min -> 17 + 13 min, which is still not as fast as I want it to be but I'll take it
Lintrunner provides some parallelism by default, but it's not perfect
Reducing fetch-depth from all to 1 further reduces time by ~2-3 minutes
From non clang's logs:
```
2024-02-09T22:05:39.5297616Z Requirement already satisfied: PyYAML==6.0 in /opt/conda/lib/python3.11/site-packages (6.0)
2024-02-09T22:12:23.6164708Z Collecting black==23.12.1
```
I don't know why this part takes so long, maybe it's just buffering? Clang version doesn't show this issue
See https://hud.pytorch.org/pytorch/pytorch/commit/5a750c80354d01f7d391f2e817590cc8b587ac9a
Pull Request resolved: https://github.com/pytorch/pytorch/pull/119575
Approved by: https://github.com/huydhn, https://github.com/malfet
