Replace local copyright check with pre-commit-hooks verify-copyright

Description

The local copyright.py script is bug-prone. Replace it with a more robust centralized script from pre-commit-hooks.

[ ] I am familiar with the Contributing Guidelines.
[ ] New or existing tests cover these changes.
[ ] The documentation is up to date with these changes.
[ ] The cmake-format.json is up to date with these changes.
[ ] I have added new files under rapids-cmake/
- [ ] I have added include guards (include_guard(GLOBAL))
- [ ] I have added the associated docs/ rst file and update the api.rst