[Feature Request] Include pipeline data in Approval object in v7 pipeline approvals

The Approval object in v7/pipelineapprovals doesn't seem to match the actual REST response type.

{
    "id": "16741a55-948b-4194-8c63-1637ca311a46",
    "steps": [],
    "status": "pending",
    "createdOn": "2024-01-01T07:00:14.127Z",
    "lastModifiedOn": "2024-01-01T07:00:14.1267785Z",
    "executionOrder": "anyOrder",
    "minRequiredApprovers": 1,
    "blockedApprovers": [],
    "_links": {
        "self": {
            "href": "AN_HREF_HERE" 
        }
    },
    "pipeline": {
        "owner": {
            "_links": {
                "web": {
                    "href": A_LINK_TO_THE_BUILD_HERE
                },
                "self": {
                    "href": "<REDACTED>
                }
            },
            "id": 149350,
            "name": "<REDACTED>"
        },
        "id": "413",
        "name": "Retag Images"
    }
}

The Go type in the SDK doesn't include the corresponding pipeline type and it would be really nice if it was included to simplify making additional REST calls to get the actual data.

Start at the Go Approval type in the v7/pipelineapprovals entry point and compare it with the REST response example, focusing on the omitted pipeline data. Trace the related type definitions and package tests, if present, and confirm the Approval value exposes the returned pipeline fields.