Summary:
Use `./scripts/run_clang_tidy.sh` to run clang_tidy.
We can now run clang-tidy but can't put it in our build yet, because of failures.

Test Plan: `./scripts/run_clang_tidy.sh`

Reviewers: michelle, oazizi, #engineering

Reviewed By: oazizi, #engineering

Differential Revision: https://phab.corp.pixielabs.ai/D433

GitOrigin-RevId: e9623d79c764c7ae36ddfdfc68e0a09d45d27b69