Update bun version and install script from ovensh

[gunungpw]

All Submissions:

• [x] Have you followed the guidelines stated in CONTRIBUTING.md file?
• [x] Have you checked to ensure there aren't any other open Pull Requests for the desired changed?

• Update Bun version from 1.1.10 to 1.1.21, Changelog
• Update install.ps1 to match with upstream Bun Install Script