ci: attempt fix missing awk on opensuse/tumbleweed #523

Job	Run time
fresh-macos-test	13m 53s
login-shells-and-linting	4m 25s
distro-test (ubuntu:latest)	4m 5s
distro-test (fedora:latest)	4m 23s
homebrew-macos-test	9m 41s
distro-test (debian:latest)	3m 52s
distro-test (alpine:latest)	6m 5s
distro-test (manjarolinux/base)	4m 27s
distro-test (opensuse/leap)	6m 7s
distro-test (opensuse/tumbleweed)	4m 1s
distro-test (kalilinux/kali-rolling)	4m 26s
	1h 5m 25s

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