Regenerate migrationcenter client (googleapis#6709)

Generated in GitHub action: https://togithub.com/googleapis/googleapis/google-api-php-client-services/actions/workflows/codegen.yaml

Author: yoshi-code-bot

src/MigrationCenterAPI/Resource/ProjectsLocations.php

@@ -68,9 +68,9 @@ public function getSettings($name, $optParams = [])
    * applicable.
    * @param array $optParams Optional parameters.
    *
-   * @opt_param string extraLocationTypes Optional. A list of extra location types
-   * that should be used as conditions for controlling the visibility of the
-   * locations.
+   * @opt_param string extraLocationTypes Optional. Unless explicitly documented
+   * otherwise, don't use this unsupported field which is primarily intended for
+   * internal usage.
    * @opt_param string filter A filter to narrow down results to a preferred
    * subset. The filtering language accepts strings like `"displayName=tokyo"`,
    * and is documented in more detail in [AIP-160](https://google.aip.dev/160).