Merge pull request #921 from catalyst/fixbehatphpdoc

Update behat_auth_saml2.php

Author: matthewhilton

tests/behat/behat_auth_saml2.php

@@ -384,11 +384,11 @@ private function reset_moodle_session() {
      * Note: The contextapi does not support a callback.
      *
      * @param string|array $contextapi context in which api is defined.
-     * @param array|mixed $params list of params to pass or a single parameter
+     * @param mixed $params list of params to pass or a single parameter
      */
     protected function execute(
         string|array $contextapi,
-        mixed $params = [],
+        mixed $params = []
     ): void {
         global $CFG;