🐛 Bug: turbo watch does not work in single-package workspaces

[ygrandgirard]

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/ygrandgirard/turbo-single-package-watch-repro

Which canary version will you have in your reproduction?

2.3.3

Enviroment information

> npx turbo info
turbo 2.3.3

CLI:
   Version: 2.3.3
   Path to executable: <project>\node_modules\turbo-windows-64\bin\turbo.exe
   Daemon status: Running
   Package manager: npm

Platform:
   Architecture: x86_64
   Operating system: windows
   WSL: false
   Available memory (MB): 1900
   Available CPU cores: 16

Environment:
   CI: None
   Terminal (TERM): unknown
   Terminal program (TERM_PROGRAM): unknown
   Terminal program version (TERM_PROGRAM_VERSION): unknown
   Shell (SHELL): unknown
   stdin: false

Expected behavior

It should run my command in watch mode.

Actual behavior

> npx turbo watch lint
turbo 2.3.3

• Running lint
• Remote caching disabled
• Running lint
• Remote caching disabled
  × discovery failed: version mismatch: package.json: no workspaces found. Turborepo requires npm workspaces to be
  │ defined in the root package.json

To Reproduce

1. Clone https://github.com/ygrandgirard/turbo-single-package-watch-repro
2. Run npm install
3. Run npx turbo watch lint

Additional context

No response