Move filtering banned addrs inside GetAddresses()

Summary:
This is a backport of core#18991 [1/5]
https://github.com/bitcoin/bitcoin/pull/18991/commits/ded742bc5b96e3215d69c11fb3628d224e7ae034

Test Plan: ninja all check-all

Reviewers: #bitcoin_abc, majcosta

Reviewed By: #bitcoin_abc, majcosta

Subscribers: majcosta

Differential Revision: https://reviews.bitcoinabc.org/D10053