Fix install package to work with custom download_checksum #123

Job	Run time
lint-unit / rspec	45s
lint-unit / cookstyle	31s
lint-unit / check-metadata	7s
lint-unit / markdown-link-check	1m 42s
lint-unit / markdownlint-cli2	3s
lint-unit / yamllint	9s
integration (almalinux-8, repository)	2m 37s
integration (almalinux-8, package)	57s
integration (centos-7, repository)	2m 50s
integration (centos-7, package)	2m 10s
integration (centos-stream-8, repository)	4m 10s
integration (centos-stream-8, package)	56s
integration (debian-10, repository)	2m 13s
integration (debian-10, package)	53s
integration (debian-11, repository)	2m 20s
integration (debian-11, package)	58s
integration (fedora-latest, repository)	3m 1s
integration (fedora-latest, package)	57s
integration (rockylinux-8, repository)	2m 32s
integration (rockylinux-8, package)	54s
integration (ubuntu-1804, repository)	2m 14s
integration (ubuntu-1804, package)	1m 2s
integration (ubuntu-2004, repository)	2m 14s
integration (ubuntu-2004, package)	1m 1s
	37m 16s

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