Increase zypper refresh timeout in zypper_lifecycle

Due to poo#115292, increase "zypper refresh" timeout value
to download and parse the metadata of packages for maintenance
jobs which have many repositories.

tests/console/zypper_lifecycle.pm

@@ -66,9 +66,9 @@ sub run {
     script_run('rm -fr /var/cache/zypp/solv /var/cache/zypp/solv');
     script_run('rm -fr /var/cache/zypp/raw /var/cache/zypp/raw');
 
-    # We add 'zypper ref' here to download and preparse the metadata of packages,
+    # We add 'zypper ref' here to download and parse the metadata of packages,
     # which will make the following 'zypper lifecycle' runs faster.
-    script_run('zypper refresh', 300);
+    script_run('zypper refresh', 420);
 
     select_console 'user-console';
     my $overview = script_output('zypper lifecycle', 600);