I want to use redash to request my GA4 data. But I found that it only support Analytics API.
for the reason that we can access GA4 data with Google Analytics Data API v1. I want to now how can we use redash to access GA4?

Did you search the forum before posting? From a few weeks ago:

pull request contains query runner for Google Analytics Data API (GA4) and Google Search Console API. You can use the code from the pull request or wait for this to get merged in main branch.

when will it be merged in main branch?
We can not use UA on 1 July 2023 any more.