[Feat]: Is there a code-server targetting vscode-insider

## What is your suggestion?
To target the vscode-insider build

## Why do you want this feature?
Would like to try this feature https://github.com/microsoft/vscode/pull/194696 in order to give feedback

## Are there any workarounds to get this functionality today?
No

## Are you interested in submitting a PR for this?
If it is not too difficult

