Adds DeliveryResponses parsing in NotificationConfiguration

[jpadrianoGo]

Description

This PR updates DeliveryResponses field parsing of NotificationConfiguration. NotificationConfiguration now parses DeliveryResponses.

The change aims to be part of automating notification configuration management for workspaces. This aligns with API's NotificationConfiguration return for List, Create, Read, Update, and Verify operations.

curl
--header "Authorization: Bearer $TOKEN"
--request POST
--data @payload.json
https://app.terraform.io/api/v2/workspaces/ws-***/notification-configurations/

{
  "data": {
    "id": "nc-***",
    "type": "notification-configurations",
    "attributes": {
      "enabled": true,
      "name": "Notify organization users about run",
      "destination-type": "generic",
      "triggers": [
        "run:applying",
        "run:completed",
        "run:created",
        "run:errored",
        "run:needs_attention",
        "run:planning"
      ],
      "delivery-responses": [
        {
          "code": "200",
          "body": "{\"code\":200,\"description\":\"OK\"}",
          "headers": {
            "content-length": ["31"],
            "content-type": ["application/json"],
            "date": ["Mon, 16 Jun 2025 01:42:05 GMT"]
          },
          "sent-at": "2025-06-16T01:42:06+00:00",
          "successful": "true",
          "url": "***"
        }
      ],
      "created-at": "2025-06-16T01:42:06.447Z",
      "updated-at": "2025-06-16T01:42:06.447Z",
      "url": "***",
      "token": null
    },
    "relationships": {
      "subscribable": {
        "data": {
          "id": "ws-***",
          "type": "workspaces"
        }
      }
    },
    "links": {
      "self": "/api/v2/notification-configurations/nc-***"
    }
  }
}

A new function is added to parse DeliveryResponse func parseDeliveryResponses(nc *NotificationConfiguration).
The following functions have been updated to use parseDeliveryResponses:

• NotificationConfigurations.List(ctx context.Context, subscribableID string, options *NotificationConfigurationListOptions) (*NotificationConfigurationList, error)
• NotificationConfigurations.Create(ctx context.Context, subscribableID string, options NotificationConfigurationCreateOptions) (*NotificationConfiguration, error)
• NotificationConfigurations.Read(ctx context.Context, notificationConfigurationID string) (*NotificationConfiguration, error)
• NotificationConfigurations.Update(ctx context.Context, notificationConfigurationID string, options NotificationConfigurationUpdateOptions) (*NotificationConfiguration, error)

Testing plan

1. Generate the required environment variables for go test, TFE_ADDRESS, TFE_TOKEN, and TFC_RUN_TASK_URL
2. Run TFE_ADDRESS="https://example" TFE_TOKEN="example" TFC_RUN_TASK_URL="working-URL" go test ./... -v -run TestNotificationConfigurationReadDeliveryResponses . The new tests should pass.
3. DeliveryResponses is read for NotificationConfigurations.
4. Run all tests in notification_configuration_integration_test.go and existing tests should pass.

External links

Output from tests

Including output from tests may require access to a TFE instance. Ignore this section if you have no environment to test against.

$ TFE_ADDRESS="https://example" TFE_TOKEN="example"  TFC_RUN_TASK_URL="working-URL"  go test ./... -v -run TestNotificationConfigurationReadDeliveryResponses 
=== RUN   TestNotificationConfigurationReadDeliveryResponses
=== RUN   TestNotificationConfigurationReadDeliveryResponses/with_notification_configuration_create
=== RUN   TestNotificationConfigurationReadDeliveryResponses/with_notification_configuration_list
=== RUN   TestNotificationConfigurationReadDeliveryResponses/with_notification_configuration_read
=== RUN   TestNotificationConfigurationReadDeliveryResponses/with_notification_configuration_update
=== RUN   TestNotificationConfigurationReadDeliveryResponses/with_notification_configuration_verify
=== RUN   TestNotificationConfigurationReadDeliveryResponses/with_notification_configuration_disabled
--- PASS: TestNotificationConfigurationReadDeliveryResponses (17.20s)
    --- PASS: TestNotificationConfigurationReadDeliveryResponses/with_notification_configuration_create (2.28s)
    --- PASS: TestNotificationConfigurationReadDeliveryResponses/with_notification_configuration_list (3.35s)
    --- PASS: TestNotificationConfigurationReadDeliveryResponses/with_notification_configuration_read (2.45s)
    --- PASS: TestNotificationConfigurationReadDeliveryResponses/with_notification_configuration_update (2.74s)
    --- PASS: TestNotificationConfigurationReadDeliveryResponses/with_notification_configuration_verify (2.83s)
    --- PASS: TestNotificationConfigurationReadDeliveryResponses/with_notification_configuration_disabled (2.48s)
PASS
ok      github.com/hashicorp/go-tfe     17.211s

[ctrombley]

Superseded by #1190.