.travis.yml: force updating broken lmu in travis
.travis.yml: force updating broken lmu in travis

Some of Travis perls come with a bundled List::MoreUtils, which is
incompatible to recent List::MoreUtils::XS. Force an update of the
broken one to keep Test::Perl::Critic running ...

Signed-off-by: Jens Rehsack <69d49c504a9219a55b8be0f905e8fe3c32ffb57f@netbsd.org>

perl5-utils/List-MoreUtils-XS,perl5-utils/List-MoreUtils-XS