Deal with a whole lot of PHPStan suppressed key casting errors

closes #6534

src/crafting/CraftingManagerFromDataHelper.php

@@ -193,7 +193,7 @@ final class CraftingManagerFromDataHelper{
 	 */
 	private static function loadJsonObjectListIntoModel(\JsonMapper $mapper, string $modelClass, array $data) : array{
 		$result = [];
-		foreach($data as $i => $item){
+		foreach(Utils::promoteKeys($data) as $i => $item){
 			if(!is_object($item)){
 				throw new SavedDataLoadingException("Invalid entry at index $i: expected object, got " . get_debug_type($item));
 			}