amend policy insert_acct_class/acct_unique to work with multiple Class attributes #8468

Job	Run time
DEB build (ubuntu-20.04, ubuntu:20.04)	2m 44s
DEB build (ubuntu-22.04, ubuntu:22.04)	3m 4s
DEB build (ubuntu-24.04, ubuntu:24.04)	4m 8s
DEB build (debian-10, debian:buster)	2m 26s
DEB build (debian-11, debian:bullseye)	2m 22s
DEB build (debian-12, debian:bookworm)	3m 9s
DEB build (debian-sid, debian:sid)	3m 10s
DEB install test (ubuntu-20.04, ubuntu:20.04)	24s
DEB install test (ubuntu-22.04, ubuntu:22.04)	23s
DEB install test (ubuntu-24.04, ubuntu:24.04)	24s
DEB install test (debian-10, debian:buster)	26s
DEB install test (debian-11, debian:bullseye)	26s
DEB install test (debian-12, debian:bookworm)	25s
DEB install test (debian-sid, debian:sid)	21s
	23m 52s

Provide feedback