Consider GitHub Copilot Reviews

**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
@kou and others are working to optimize github copilot reviews in the main arrow repo, see
- https://github.com/apache/arrow/pull/50117

I think these reviews are valuable and could potentially help improve the throughput of reviews in this repo

**Describe the solution you'd like**
1. Enable Copilot reviews in arrow-rs

**Describe alternatives you've considered**

**Additional context**

Start by reading the linked Apache Arrow pull request 50117 and compare how Copilot reviews are configured for the main Arrow repository. Then inspect the arrow-rs repository settings and review configuration; done means Copilot reviews are enabled for arrow-rs and the configuration is confirmed to work.

Written by the indexing model from the issue text.