Fix bookworm and readme #220

Job	Run time
lint-unit / cookstyle	30s
lint-unit / yamllint	11s
lint-unit / check-metadata	6s
lint-unit / markdown-link-check	25s
lint-unit / markdownlint-cli2	4s
lint-unit / rspec	36s
integration-macos (macos-latest, default)	2m 16s
integration-windows (windows-latest, default)	13m 35s
integration (amazonlinux-2, default)	1m 3s
integration (centos-7, default)	1m 9s
integration (centos-8, default)	30s
integration (debian-9, default)	51s
integration (debian-10, default)	57s
integration (fedora-latest, default)	59s
integration (opensuse-leap-15, default)	1m 21s
integration (oraclelinux-7, default)	1m 24s
integration (oraclelinux-8, default)	1m 4s
integration (ubuntu-1804, default)	1m 4s
integration (ubuntu-2004, default)	1m 8s
	29m 13s

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