tools: bump cpplint.py to 1.4.6

Refs: https://github.com/cpplint/cpplint/releases/tag/1.4.6

PR-URL: #35569
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Daijiro Wachi <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>

Author: Trott