gleam: Check for `gleam` on the PATH before installing the latest version (#9882)
This PR updates the Gleam extension to give priority to the `gleam`
binary that is already on the PATH before downloading/installing a
separate Gleam version.
Release Notes:
- N/A
95699a07f4Marshall Bowers committed on 3/27/2024, 6:25:18 PM· committed by GitHubparent894b39a