Update logging_data_access type (#2816)

* Update logging_data_access variables to use types

* Fix dependencies

* fix schema

* Add missing comma

* Fix try

modules/project/logging.tf

@@ -1,5 +1,5 @@
 /**
- * Copyright 2024 Google LLC
+ * Copyright 2025 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -50,11 +50,10 @@ resource "google_project_iam_audit_config" "default" {
   project  = local.project.project_id
   service  = each.key
   dynamic "audit_log_config" {
-    for_each = each.value
-    iterator = config
+    for_each = { for k, v in each.value : k => v if v != null }
     content {
-      log_type         = config.key
-      exempted_members = config.value
+      log_type         = audit_log_config.key
+      exempted_members = audit_log_config.value.exempted_members
     }
   }
 }