Add dnf5 package to Mariner 2.0. Upgrade librepo to version 1.15.1. Upgrade libsolv to version 0.7.24 (#5730)
* initial commit for dnf5
* update dnf5 spec for mariner, librepo signature, add libsolv REPO_COMPS option
* update changelogs for dnf5 and libso
* Updating spec source attribution.
* PR checks and comment updates, stop building dnf5-daemon packages
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Co-authored-by: Sam Meluch <sam.meluch@microsoft.com>
Co-authored-by: Olivia Crain <oliviacrain@microsoft.com>
Co-authored-by: Pawel Winogrodzki <pawelwi@microsoft.com>
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