cacheDir path is missing the root path

[cedeber]

Hello. Looks like the cacheDir option in Vite config file is broken. I feel like the root option has been forgotten.

{
  root: "./packages/application",
  cacheDir: ".cache"
}

It does save the certificate into /.cache instead of ./packages/application/.cache. Thanks.

[PengBoUESTC]

Hello. Looks like the cacheDir option in Vite config file is broken. I feel like the root option has been forgotten.

{
  root: "./packages/application",
  cacheDir: ".cache"
}

It does save the certificate into /.cache instead of ./packages/application/.cache. Thanks. this plugin compute cacheDir itself which is different from the rule of vite, I think the hook used in this plugin is a little early