[BP MB-34026] - Convert NodeUUID's to hostname/IP address in index definition during upgrade (from Spock)

In one of the customer scenarios, the customer was seeing nodeUUID's as a part of "Nodes" field in index definition. This is because, in 5.1.2, "Nodes" field in index definition was populated with NodeUUID's. This has changed in Vulcan where the "Nodes" field in index definition is populated with IP address/hostname of the indexer nodes.

So, when indexer is upgraded from Spock to higher versions, for indexes created in Spock, the WITH clause in index definition is displayed with NodeUUID's instead of IP address/hostnames.

This bug is to handle the conversion from NodeUUID's to IP address/Hostnames when displaying the WITH clause after upgrade. The issue can be reproduced using the following steps:

a. Create indexes in 5.1.2
b. Offline upgrade the indexer nodes to 6.0.1, and bring the indexer node back online
c. On the UI, we can see NodeUUID's in WITH clause for those indexes created in 5.1.2