Changes the designation of the public holiday of Columbus day to Indigenous People's Day

This bill changes the state's official designation of the second Monday in October holiday from "Columbus Day" to "Indigenous People's Day," effective starting in 2025. It amends multiple state statutes to update references to the holiday in laws governing flag display, business holidays, transportation law enforcement, and town appropriations. The change directly affects state institutions, legal documents, and public observances that currently reference "Columbus Day" as a designated holiday. The bill does not alter the holiday's date or create new public events, only updating the official name in state law.