Add missing dependency.

po4a::chooser: Module loading error: Can't locate YAML/Tiny.pm in @INC (you may need to install the YAML::Tiny module) (@INC contains: .. /usr/local/lib/perl5/site_perl/mach/5.32 /usr/local/lib/perl5/site_perl /us…r/local/lib/perl5/5.32/mach /usr/local/lib/perl5/5.32 .) at /usr/local/lib/perl5/site_perl/Locale/Po4a/Text.pm line 60.
BEGIN failed--compilation aborted at /usr/local/lib/perl5/site_perl/Locale/Po4a/Text.pm line 60.

Noticed by: pkg-fallout