Build failure on Windows

[gabrielschulhof]

While running vcbuild.bat test-addons:

Building addons
internal/modules/cjs/loader.js:602
    throw err;
    ^

Error: Cannot find module 'to-vfile'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:600:15)
    at Function.Module._load (internal/modules/cjs/loader.js:529:25)
    at Module.require (internal/modules/cjs/loader.js:654:17)
    at require (internal/modules/cjs/helpers.js:22:18)
    at Object.<anonymous> (C:\Users\agnes\code\node\tools\doc\addon-verify.js:11:15)
    at Module._compile (internal/modules/cjs/loader.js:718:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:729:10)
    at Module.load (internal/modules/cjs/loader.js:617:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:560:12)
    at Function.Module._load (internal/modules/cjs/loader.js:552:3)

[Trott]

@nodejs/build @nodejs/platform-windows

[bzoz]

Can reproduce. Clean master checkout fails to build addons.

[bzoz]

Fix in #25108

[gengjiawen]

Any thought introduce appveyor to prevent future regression ?