refactor: update return type of getParameterDefinitions to array<null>

Author: obarbosa89

src/Contracts/SqliteStatement.php

@@ -23,7 +23,7 @@ public function bind(int|string $paramId, string $data): void;
     public function getColumnDefinitions(): array;
 
     /**
-     * @return array<SqliteColumnDefinition>
+     * @return array<null>
      */
     public function getParameterDefinitions(): array;