feat(tactic/tidy): include norm_cast in tidy (#2063)
* feat(tactic/tidy): include norm_cast in tidy
* Update src/tactic/core.lean
Co-authored-by: Rob Lewis <Rob.y.lewis@gmail.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
