[codeowners] Add code owners on west coast to java (#20651)
[codeowners] Add code owners on west coast to java (#20651)

We need code owners on the java files so that we can revert changes to java files that break CI.


ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray