Ensure in-transit encryption is enabled for Azure Redis Cache

Azure Redis Cache enables encryption using TLS by default, however this can be disabled. It is recommended to leave it configured as well as configure it to use TLS 1.2 as the industry standard. For more information, see the Azure documentation.
References:
https://learn.microsoft.com/en-us/security/benchmark/azure/baselines/azure-cache-for-redis-security-baseline

In Azure Console -

1. Open the Azure Portal and go to Azure Cache for Redis.
2. Select the Redis Cache you wish to edit.
3. Under Settings, select Advanced Settings.
4. Set Allow access only via SSL to Yes.
5. Ensure Non-SSL Port gets set to Disabled when changing the prior setting.
6. Set Minimum TLS version to 1.2.
7. Save.

In Terraform -

1. In the azurerm_redis_cache resource, set enable_non_ssl_port to false.
2. Set minimum_tls_version to 1.2.

References:
https://learn.microsoft.com/en-us/azure/azure-cache-for-redis/
https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/redis_cache#enable_non_ssl_port