Run scripts if not installed, add almalinux-8, fix package list for alma9 and centos8

1. 53453500 - Execute scripts even if they are not installed in /usr/lib/rinse (e.g. from a cloned copy of the repo)
2. 43f8a7ac - Some packages are now called centos-stream-xxx
3. 541268ed - add almalinux-release to package list
4. 37c0e7d9 - Adding Almalinux8