fix: fixing mysql syntax for 5.7 (#138)

src/main/java/io/supertokens/storage/mysql/queries/BulkImportQueries.java

@@ -135,7 +135,7 @@ public static List<BulkImportUser> getBulkImportUsersAndChangeStatusToProcessing
                 String selectQuery = "SELECT * FROM " + Config.getConfig(start).getBulkImportUsersTable()
                 + " WHERE app_id = ?"
                 + " AND (status = 'NEW' OR status = 'PROCESSING')" /* 10 mins */
-                + " LIMIT ? FOR UPDATE SKIP LOCKED";
+                + " LIMIT ? FOR UPDATE";
 
 
                 List<BulkImportUser> bulkImportUsers = new ArrayList<>();