Bump timeout for refreshing repos in Agama unattended

lib/Yam/Agama/Pom/AgamaUpAndRunningPage.pm

@@ -21,7 +21,7 @@ sub new {
               agama-configuring-the-product
               agama-installing
               agama-sle-overview)],
-        timeout_expect_is_shown => $args->{timeout_expect_is_shown} // 120
+        timeout_expect_is_shown => $args->{timeout_expect_is_shown} // 240
     }, $class;
 }