chore: centralise all yum repo configuration (#436)

- add 30+ repository definitions to AlmaLinux/all_releases.yaml with `ensure: absent` defaults
- update all role-specific hieradata files to use `ensure: present` pattern
- remove duplicated repository URL/GPG key configurations from individual roles
- maintains existing functionality while improving maintainability"

Reviewed-on: #436

hieradata/os/AlmaLinux/AlmaLinux8.yaml

@@ -7,17 +7,4 @@ profiles::packages::include:
 
 profiles::yum::global::repos:
   powertools:
-    name: powertools
-    descr: powertools repository
-    target: /etc/yum.repos.d/powertools.repo
-    baseurl: https://edgecache.query.consul/almalinux/%{facts.os.release.full}/PowerTools/%{facts.os.architecture}/os
-    gpgkey: http://edgecache.query.consul/almalinux/RPM-GPG-KEY-AlmaLinux-%{facts.os.release.major}
-    mirrorlist: absent
-  unkin:
-    name: unkin
-    descr: unkin repository
-    target: /etc/yum.repos.d/unkin.repo
-    baseurl: https://git.query.consul/api/packages/unkin/rpm/almalinux/el8
-    gpgkey: https://git.query.consul/api/packages/unkin/rpm/repository.key
-    gpgcheck: false
-    mirrorlist: absent
+    ensure: present