Update documentation about AlmaLinux errata

We need to give some love to https://wiki.almalinux.org/documentation/errata.html
Things to cover:
* Provide new screenshots, they're from 2022
* Describe with RHEL errata
* Update the description about AlmaLinux errata
* RHEL compatible erratas- variants we follow and release cadence between RHEL -> AlmaLinux
* Erratas only present in AlmaLinux - why/when they are released. Process for requesting a fix for CVEs that were not yet released upstream
* Describe different resources
* http://errata.almalinux.org
* OVAL feeds, jsons and errata rss
* Maybe point to openscap guide section?
* updateinfo - already described
* Not forget adding AlmaLinux 10
* We point people to security list for errata release announcements, and currently these are posted into the announce list
* We need to update this and
* revisit the security list and figure out its purpose - no activity