@rules_perl not marked as a dependency

`rules_foreign_cc` on `0.15.1` stops working if `rules_perl` is not added as a `bzlmod` dependency separately, should the perl ruleset be added as a dependency? Confirmed that it works with version `1.1.1` of it.

Start by checking the repository's bzlmod dependency declarations and how rules_foreign_cc 0.15.1 references rules_perl. Reproduce the failure without a separate rules_perl dependency, then verify that the dependency declaration makes the 0.15.1 setup work with rules_perl 1.1.1.

Written by the indexing model from the issue text.