Add EL10 support

With no specific repository for EL10, packages built for EL9 are
installable and seems working at first glance.

Once an appropriate repository is published, this commit can be reversed

Change-Id: Ic80b316b69dc6b8086d90cfff46ceb318072ac0a
(cherry picked from commit ac16614326)

vars/redhat.yml

@@ -19,10 +19,14 @@ _rabbitmq_install_method: external_repo
 # el9, the packages themselves still have an el8 dist tag for rabbitmq
 _rabbitmq_package_dist_tag: "el8"
 
-_rabbitmq_erlang_package_dist_tag: "el{{ ansible_facts['distribution_major_version'] }}"
+# NOTE(noonedeadpunk): While there are no repository for EL10, EL9 keeps
+#                      working just fine, as it's pretty much self-contained.
+#                      Once there is EL10-specific repo, patch introducting this comment
+#                      can be reverted.
+_rabbitmq_erlang_package_dist_tag: "el9"
 
 # NOTE(noonedeadpunk): List of available packages can be searched here: https://cloudsmith.io/~rabbitmq/repos/
-_rabbitmq_repo_url: "https://yum1.rabbitmq.com/rabbitmq/el/{{ ansible_facts['distribution_major_version'] | lower }}/noarch"
+_rabbitmq_repo_url: "https://yum1.rabbitmq.com/rabbitmq/el/9/noarch"
 _rabbitmq_repo:
   name: rabbitmq_rabbitmq-server
   description: "RabbitMQ Server Rolling Repository"
@@ -35,7 +39,7 @@ _rabbitmq_repo:
     - https://dl.cloudsmith.io/public/rabbitmq/rabbitmq-server/gpg.9F4587F226208342.key
 
 # NOTE(noonedeadpunk): List of available packages can be searched here: https://cloudsmith.io/~rabbitmq/repos/
-_rabbitmq_erlang_repo_url: "https://yum1.rabbitmq.com/erlang/el/{{ ansible_facts['distribution_major_version'] | lower }}/$basearch"
+_rabbitmq_erlang_repo_url: "https://yum1.rabbitmq.com/erlang/el/9/$basearch"
 _rabbitmq_erlang_repo:
   name: rabbitmq_els-erlang
   description: "RabbitMQ Erlang Packages"