Add support for CPAN Distribution mining

We have https://github.com/aboutcode-org/purldb/blob/main/minecode/miners/cpan.py](https://github.com/aboutcode-org/purldb/blob/main/minecode/miners/cpan.py ,  which misses support for MetaCPAN distribution API.

Example:
    https://fastapi.metacpan.org/v1/release/_search?q=distribution:Mojolicious%20AND%20version:9.22