Add more owners to src/deoptimizer

Change-Id: If4c6792d36423daafb2a4454354db2d9e4abe297
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3879229Reviewed-by: Jakob Linke <jgruber@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83051}

src/deoptimizer/OWNERS

 jgruber@chromium.org
+leszeks@chromium.org
 nicohartmann@chromium.org
+victorgomes@chromium.org