0 0 1 Python

Use the install method for flatc (#10859)

### Summary

I came across this "cleaner" approach when setting up flatcc
(https://github.com/pytorch/executorch/pull/10855). So, let's do it for
flatc too.

### Test plan

CI

cc @larryliu0820

jathu committed 1y ago

b20419d422d5c54f90da5aec3f879d4c9b227bf6

Parent: 9ded0a2

Committed by GitHub <noreply@github.com> on 5/13/2025, 10:36:47 PM