[PLAT-2180] Missing error response logging when demoteInstance fails

Summary: Added logging

Test Plan: None. Simple logging change. Will just run existing tests to mak sur enothing breaks.

Reviewers: nsingh

Reviewed By: nsingh

Subscribers: jenkins-bot, yugaware

Differential Revision: https://phabricator.dev.yugabyte.com/D13776

managed/src/main/java/com/yugabyte/yw/common/PlatformInstanceClient.java

@@ -74,7 +74,7 @@ private JsonNode makeRequest(Call call, JsonNode payload) {
     }
 
     if (response == null || response.get("error") != null) {
-      LOG.error("Error received from remote instance {}", this.remoteAddress);
+      LOG.error("Error received from remote instance {}: {}", this.remoteAddress, response);
 
       throw new RuntimeException("Error received from remote instance " + this.remoteAddress);
     }