Set Changelog to ## Unreleased #279

Job	Run time
lint-unit / cookstyle	33s
lint-unit / markdown-link-check	45s
lint-unit / markdownlint-cli2	3s
lint-unit / rspec	43s
lint-unit / yamllint	9s
lint-unit / check-metadata	0s
integration-windows (windows-latest, default)	20m 31s
integration-macos (macos-latest, default)	1m 17s
integration (centos-7, default)	1m 24s
integration (centos-stream-8, default)	1m 0s
integration (debian-11, default)	1m 18s
integration (debian-12, default)	1m 22s
integration (fedora-latest, default)	1m 1s
integration (oraclelinux-8, default)	1m 5s
integration (ubuntu-1804, default)	1m 32s
integration (ubuntu-2004, default)	1m 25s
integration (ubuntu-2204, default)	1m 37s
	35m 45s

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