[Enhance] azurerm_redis_cache - support config identity

[xuzhang3]

Add support configuring SystemAssigned, UserAssigned identities for azurerm_redis_cache

=== RUN   TestAccRedisCache_identity
=== PAUSE TestAccRedisCache_identity
=== CONT  TestAccRedisCache_identity
--- PASS: TestAccRedisCache_identity (2064.65s)
PASS
ok      github.com/hashicorp/terraform-provider-azurerm/internal/services/redis 2066.745s
=== RUN   TestAccRedisCache_BackupEnabledDisabled
=== PAUSE TestAccRedisCache_BackupEnabledDisabled
=== CONT  TestAccRedisCache_BackupEnabledDisabled
--- PASS: TestAccRedisCache_BackupEnabledDisabled (1375.91s)
PASS
ok      github.com/hashicorp/terraform-provider-azurerm/internal/services/redis (cached)
=== RUN   TestAccRedisCache_basic
=== PAUSE TestAccRedisCache_basic
=== CONT  TestAccRedisCache_basic
--- PASS: TestAccRedisCache_basic (1892.95s)
PASS
ok      github.com/hashicorp/terraform-provider-azurerm/internal/services/redis 1895.231s
=== RUN   TestAccRedisCache_premium
=== PAUSE TestAccRedisCache_premium
=== RUN   TestAccRedisCache_premiumSharded
=== PAUSE TestAccRedisCache_premiumSharded
=== RUN   TestAccRedisCache_premiumShardedScaling
=== PAUSE TestAccRedisCache_premiumShardedScaling
=== CONT  TestAccRedisCache_premium
=== CONT  TestAccRedisCache_premiumShardedScaling
=== CONT  TestAccRedisCache_premiumSharded
--- PASS: TestAccRedisCache_premium (1303.34s)
--- PASS: TestAccRedisCache_premiumSharded (1350.14s)
--- PASS: TestAccRedisCache_premiumShardedScaling (2615.91s)
PASS
ok      github.com/hashicorp/terraform-provider-azurerm/internal/services/redis 2617.864s

[katbyte]

Thanks @xuzhang3 - LGTGM 🌿

[github-actions]

This functionality has been released in v3.9.0 of the Terraform Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

I'm going to lock this pull request because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active contributions.
If you have found a problem that seems related to this change, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.