fix: update response message for sentinel push route

- Removed the temporary unavailability message from the /sentinel/push route to allow for proper handling of authorization without misleading responses.
- This change improves the clarity of the API response when the authorization token is not provided.

routes/api.php

@@ -133,7 +133,6 @@ Route::group([
     'prefix' => 'v1',
 ], function () {
     Route::post('/sentinel/push', function () {
-        return response()->json(['message' => 'temporary unavailable'], 503);
         $token = request()->header('Authorization');
         if (! $token) {
             return response()->json(['message' => 'Unauthorized'], 401);