On maintenance, aws-vpc-route53 monitor function should not update the target.

In this resource agent heartbeat/aws-vpc-route53.in, from the line 361 till 369, on the monitor function, the resource is updating the DNS when it is only monitoring. This creates an issue when the pcs cluster is in maintenance and someone run pcs resource refresh, route53-RA should not change anything when pcs is in maintenance mode, like any other resource.

Start in heartbeat/aws-vpc-route53.in around lines 361-369 and inspect the monitor function's behavior during PCS maintenance. Confirm that a resource refresh while maintenance is enabled does not update the DNS target, while normal monitoring remains unchanged; run the relevant resource-agent checks if available.

Written by the indexing model from the issue text.