doc: fix default limit of maxHeadersCount in HTTPS API

Following up to the fix in the HTTP API, HTTPS uses the same request/header parsing logic.

Author: arynh

doc/api/https.md

@@ -199,7 +199,7 @@ This method is identical to [`server.listen()`][] from [`net.Server`][].
 
 ### `server.maxHeadersCount`
 
-* Type: {number} **Default:** `2000`
+* Type: {number} **Default:** `1000`
 
 See [`server.maxHeadersCount`][] in the `node:http` module.