cpanfile: Add LWP::Protocol::https

This one is needed as LWP doesn't explicitly depend on this but needed
for our `getstore("https://...")` call in `generate.pl`.

Author: zakame

cpanfile

@@ -1,6 +1,7 @@
 requires 'Devel::PatchPerl';
 requires 'YAML::XS';
 requires 'LWP::Simple';
+requires 'LWP::Protocol::https';
 
 on 'develop' => sub {
     requires 'Perl::Tidy';