No locally installed `turbo` found in your repository

[yamcodes]

Fix this warning on pnpm run build:

 WARNING  No locally installed `turbo` found in your repository. Using globally installed version (2.6.3), which can cause unexpected behavior.

Installing the version in your repository (2.6.3) before calling `turbo` will result in more predictable behavior across environments.

[yamcodes]

This seems to be a local issue that happened while developing #514. Upon resetting my dev environment, I can't reproduce.