configuration change is not detected when it is coming from `extends`

[Sysix]

The current behavior of the language server is to revalidate the diagnostics when some .oxlintrc.json file is changing.
This works perfectly with nested configuration.

We are sending a workspace/didChangeWatchedFiles request from VSCode to the server:

oxc/editors/vscode/client/extension.ts

Line 200 in fbd4f92

fileEvents: fileWatchers,

Description

When some .oxlintrc.json has extends keyword, and the files included in them are changing, the language server will not revalidate the diagnostics.

Setup

/.oxlintrc.json:

{
  "extends": ["./configs/.oxlintrc.json"]
}

/configs/.oxlintrc.json:

{
  "rules": { ... }
}

Expected

Changing ./configs/.oxlintrc.json should revalidate the diagnostics on the language server.
This will be a problem because the extends can include any filename the user wants, as long as it is valid.