fix(ha): Fix deploying RO clouddriver with Halyard (#4567) (#4568)

My recent change to push the -ro config for clouddriver down to
the base config breaks deploying RO clouddriver with Halyard
because it sets the redis endpoint to redisRo.baseUrl, which
is not set by Halyard. This should default to redis.baseUrl to
handle this case.

(cherry picked from commit b5fc7d8)

Co-authored-by: Eric Zimanyi <ezimanyi@google.com>

clouddriver-web/config/clouddriver.yml

@@ -350,7 +350,7 @@ spring:
   profiles: ro
 
 redis:
-  connection: ${services.redisRo.baseUrl}
+  connection: ${services.redisRo.baseUrl:${services.redis.baseUrl}}
 
 caching:
   writeEnabled: false