aarch64: fix name of rabbitmq copr repo

it should be the same as in repos.yaml

Change-Id: Ieb413f7a4bd1989d7f29309368b6b218d1395e0b
(cherry picked from commit 672601a)

Author: bbezak

docker/base/copr-rabbitmq-erlang.repo

@@ -2,7 +2,7 @@
 # from https://github.com/rabbitmq/erlang-rpm/
 # Thanks to COPR we have aarch64 packages for CentOS Stream 9
 
-[openstack-kolla-copr-rabbitmq-kolla]
+[copr-rabbitmq-erlang]
 name=openstack-kolla COPR with Erlang build for RabbitMQ
 baseurl=https://download.copr.fedorainfracloud.org/results/@openstack-kolla/rabbitmq-erlang/centos-stream-$releasever-aarch64/
 gpgcheck=1