gleam: Bump to v0.1.0 (#10376)

This PR bumps the Gleam extension to v0.1.0.

This version of the Gleam extension brings improved completion labels:

<img width="572" alt="Screenshot 2024-04-10 at 3 30 25 PM"
src="https://github.com/zed-industries/zed/assets/1486634/afca4563-c520-4f01-949f-2c8095769751">

Release Notes:

- N/A