doc: fix wrong location of requestTimeout's default value

Refs: https://nodejs.org/dist/latest-v19.x/docs/api/http.html#serverrequesttimeout
PR-URL: #46423
Reviewed-By: Paolo Insogna <paolo@cowtech.it>
Reviewed-By: theanarkh <theratliter@gmail.com>
Reviewed-By: Zeyu "Alex" Yang <himself65@outlook.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Harshitha K P <harshitha014@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: deokjinkim

doc/api/http.md

@@ -3235,14 +3235,14 @@ changes:
   * `requestTimeout`: Sets the timeout value in milliseconds for receiving
     the entire request from the client.
     See [`server.requestTimeout`][] for more information.
+    **Default:** `300000`.
   * `joinDuplicateHeaders` {boolean} It joins the field line values of multiple
     headers in a request with `, ` instead of discarding the duplicates.
     See [`message.headers`][] for more information.
     **Default:** `false`.
   * `ServerResponse` {http.ServerResponse} Specifies the `ServerResponse` class
     to be used. Useful for extending the original `ServerResponse`. **Default:**
     `ServerResponse`.
-    **Default:** `300000`.
   * `uniqueHeaders` {Array} A list of response headers that should be sent only
     once. If the header's value is an array, the items will be joined
     using `; `.