Verify canary release

• I verified that the issue exists in the latest Turborepo canary release.

Link to code that reproduces this issue

https://github.com/neochief/bug-turborepo-jsonc

Which canary version will you have in your reproduction?

2.5.1-canary.0

Expected behavior

I created turbo.jsonc at the project root, and everything was fine. As soon as I extended it in the subpackage, the watch mode stopped working.

Actual behavior

> turbo watch build                                                                                                               
turbo 2.5.1-canary.0

  × Cannot use root turbo.json at /Users/neochief/www/testtest/turbo.jsonc with Watch Mode.

To Reproduce

1. Create a root turbo.jsonc.
2. Create an extending turbo.jsonc in a subpackage.