[Redis components] update for Azure Cache for Redis support

[hhunter-ms]

What content needs to be created or modified?
Update docs to clarify support for Azure Cache for Redis

Where should the new material be placed?
All Redis component specs will be impacted

The associated pull request from dapr/dapr, dapr/components-contrib, or other Dapr code repos
dapr/components-contrib#3088

[berndverst]

This is actually now completed @hhunter-ms.

See the new metadata field in dapr/components-contrib#3470 -- useEntraID which needs to be set to true.

The redis server host name must be specified in the form of "server:port", and you have to enable TLS. See the linked PR for the full example.

Beyond that all standard Azure authentication options apply!