Suppress Psalm issue

Author: trowski

src/ConnectionPool.php

@@ -340,6 +340,7 @@ public function execute(string $sql, array $params = []): Result
      */
     public function prepare(string $sql): Statement
     {
+        /** @psalm-suppress InvalidArgument Psalm is not properly detecting the templated return type. */
         return $this->createStatementPool($sql, $this->prepareStatement(...));
     }