Fix Smile-SA#3403 Argument #1 ($datetime) in IndexStatusProvider isRe…

…building check

src/module-elasticsuite-indices/Model/IndexStatusProvider.php

@@ -118,9 +118,8 @@ private function isRebuilding(string $indexName, $indexDate): bool
             foreach (array_keys($this->workingIndexers) as $indexKey) {
                 if (strpos((string) $indexName, $indexKey) !== false) {
                     $today = new DateTime('now');
-                    $day   = new DateTime($indexDate);
 
-                    return ($today == $day);
+                    return ($today == $indexDate);
                 }
             }
         }