doc: mark module.register as active development

PR-URL: #60849
Refs: #60302
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Jacob Smith <[email protected]>
Reviewed-By: Marco Ippolito <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Geoffrey Booth <[email protected]>

Author: legendecas

doc/api/module.md

@@ -193,7 +193,7 @@ changes:
     description: Add support for WHATWG URL instances.
 -->
 
-> Stability: 1.2 - Release candidate
+> Stability: 1.1 - Active development
 
 * `specifier` {string|URL} Customization hooks to be registered; this should be
   the same string that would be passed to `import()`, except that if it is