Fix for warnings in Any.pm

`YAML::Any` generates the following warning with perl 5.16.0:
> defined(@array) is deprecated at /usr/local/perl/perls/perl-5.16.0/lib/site_perl/5.16.0/YAML/Any.pm line 98.

This means that most tests of `Module::CPANTS::Analyse` will fail, because some of the tests use `Test::NoWarnings`.