add filelock as a dependency (#91607)
`filelock` is a dependency now for inductor's caching mechanism and CPU backend.
Add `filelock` as a dependency
Fixes https://github.com/pytorch/pytorch/issues/93499
Pull Request resolved: https://github.com/pytorch/pytorch/pull/91607
Approved by: https://github.com/anijain2305, https://github.com/jansel
