Simplify schema existence check in migration

Author: tatevikg1

src/Migrations/Version20251028092901MySqlInit.php

@@ -30,14 +30,8 @@ public function up(Schema $schema): void
         );
 
         $schemaManager = $this->connection->createSchemaManager();
-        $tables = $schemaManager->listTableNames();
-        $hasUserStats = array_filter(
-            $tables,
-            static fn (string $table): bool =>
-            str_ends_with($table, 'userstats')
-        );
         $this->skipIf(
-            !empty($hasUserStats),
+            $schemaManager->tablesExist(['doctrine_migration_versions']),
             'phpList schema already exists.'
         );