Release: remove PR numbers from debian changelog?

[cassidyjames]

Each PR commit ends in ex. (#123). Outside of GitHub, I'm not sure the PR number is valuable or obvious as to what it is. We could probably strip it.

i.e. see: https://github.com/cassidyjames/ideogram/blob/2df53acf199242a368a1b559acbed7afe503031a/debian/changelog

Thoughts?