Fix redis config location for centos > 8

The location of redis configuration has been moved to
/etc/redis/redis.conf in CentOS9 [1]. This patch is fixing redis_config
parameter to cover this new case.

[1] https://gitlab.com/redhat/centos-stream/rpms/redis/-/blob/c9s/redis.spec#L332

Change-Id: I92beff3ecc45fba5c12e49351dc8d9f7576777f1

manifests/redis.pp

@@ -12,8 +12,12 @@ class openstack_integration::redis {
     'RedHat': {
       $redis_package_name = 'redis'
       $redis_service_name = 'redis'
+      if versioncmp($::operatingsystemmajrelease, '8') > 0 {
+        $redis_config       = '/etc/redis/redis.conf'
+      } else {
         $redis_config       = '/etc/redis.conf'
       }
+    }
     default: {
       fail("redis.pp manifest does not support family: ${::osfamily}")
     }