Update azure indexer queue to process messages from both topics 'recordstopic' and 'redinextopic'

This one of MRs to fix the issue Use specific topic instead of the storage record change topic to send the re-index events

We should have 4 MRs to fix the issue:

1. MR to create re-index topic/subscription
2. MR to add the indexer-queue deployment variables
3. MR to update the indexer-queue to handle messages from both re-index and record topics
4. Last MR to update the indexer deployment variable (`reindex_topic_name') to use re-index topic