Rebase `main` branch to remove commits from the VSCode upstream project

MR: Remove vscode upstream's commit history from re... (!87 - merged)

Description

As part of transitioning to a patch-based strategy to apply changes to the VSCode upstream repository, once the VSCode Fork repository can create build artifacts using patch files, rebase the repository main branch to remove the references to the upstream repository.

Acceptance criteria

• The VSCode Fork repository doesn't contain commits from the VSCode upstream project.
• The VSCode Fork repository doesn't contain the commits that were converted into patch files.

Reference

• RFC: Proposal to improve VSCode upgrade process (#32 - closed)
• Use patch strategy instead of force pushing to ... (#5 - closed)