test: add missing netaddress include headers

Summary:
This is a backport of core#21328 [3/3]
https://github.com/bitcoin/bitcoin/pull/21328/commits/52dd40a9febec1f4e70d777821b6764830bdec61

Depends on D11078

Test Plan: ninja all check-all bitcoin-fuzzers

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Differential Revision: https://reviews.bitcoinabc.org/D11079