typings: correct param type of SafePromisePrototypeFinally

PR-URL: nodejs#54727
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Jake Yuesong Li <jake.yuesong@gmail.com>

lib/internal/per_context/primordials.js

@@ -462,7 +462,7 @@ const SafePromise = makeSafe(
  * rejected). The resolved value cannot be modified from the callback.
  * Prefer using async functions when possible.
  * @param {Promise<any>} thisPromise
- * @param {() => void) | undefined | null} onFinally The callback to execute
+ * @param {(() => void) | undefined | null} onFinally The callback to execute
  *        when the Promise is settled (fulfilled or rejected).
  * @returns {Promise} A Promise for the completion of the callback.
  */