feat(cloudsql-instance): Add query insights config (#1520)

modules/cloudsql-instance/main.tf

@@ -105,6 +105,17 @@ resource "google_sql_database_instance" "primary" {
         value = flag.value
       }
     }
+
+    dynamic "insights_config" {
+      for_each = var.insights_config != null ? [1] : []
+      content {
+        query_insights_enabled  = true
+        query_string_length     = var.insights_config.query_string_length
+        record_application_tags = var.insights_config.record_application_tags
+        record_client_address   = var.insights_config.record_client_address
+        query_plans_per_minute  = var.insights_config.query_plans_per_minute
+      }
+    }
   }
   deletion_protection = var.deletion_protection
 }