Describe the feature

Currently findWorkspaceDir doesn't detect Deno workspaces, Deno officially supports workspaces since v1.45.

If we want to support Deno, we need to add deno.json and deno.jsonc to workspace detection files.

Ref:

• https://deno.com/blog/v1.45
• https://docs.deno.com/runtime/fundamentals/workspaces/
• https://docs.deno.com/runtime/fundamentals/configuration/ (regarding .jsonc support)

Additional information

• Would you be willing to help implement this feature?