google_secret_manager_secret "automatic" -> "auto"

[cassus]

Hi!

Thank for this great module!

Describe the bug

With the new 5.0.0 google provider [registry.terraform.io/hashicorp/google] automatic was renamed to auto. The previous versions had a deprecation warning about this.

• See Removed the automatic field from the google_secret_manager_secret resource hashicorp/terraform-provider-google#15859
• Deprecation message was: automatic is deprecated and will be removed in a future major release. Use auto instead.

╷
│ Error: Unsupported argument
│ 
│   on .terraform/modules/db1_prod_socket_url/main.tf line 33, in resource "google_secret_manager_secret" "secret":
│   33:     automatic = length(var.replication) > 0 ? null : true
│ 
│ An argument named "automatic" is not expected here.
╵

[memes]

Hello @cassus, and thanks for the report. I've been seeing the deprecation for a while but haven't updated to v5 of Google provider yet because it has many changes that need to be tested across the TF modules I maintain. As a result, there will be a v2.1.2 release that enforces a '< 5' constraint and then a v2.2.0 release that has a '>= 5.0' constraint, after testing.

Related to #54