doc,inspector: document changes of inspector.close

Retrospectively document the changes history of the `inspector.close`
API.

PR-URL: #44628
Refs: #44489
Refs: #13228
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Mohammed Keyvanzadeh <[email protected]>
Reviewed-By: Daeyeon Jeong <[email protected]>
Reviewed-By: Kohei Ueno <[email protected]>

Author: legendecas

doc/api/inspector.md

@@ -17,6 +17,14 @@ const inspector = require('node:inspector');
 
 ## `inspector.close()`
 
+<!-- YAML
+added: v9.0.0
+changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/44489
+    description: The API is exposed in the worker threads.
+-->
+
 Deactivate the inspector. Blocks until there are no active connections.
 
 ## `inspector.console`