fix(IAM Policy Management): re-gen service after fix the assignment response

[Rajesh-Pirati]

PR summary

Fix assignment resources target metadata
issue: https://github.ibm.com/IAM/AM-issues/issues/2348

PR Checklist

Please make sure that your PR fulfills the following requirements:

• The commit message follows the Angular Commit Message Guidelines.
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

Current vs new behavior

Does this PR introduce a breaking change?

• Yes
• No

Other information

test results
integration

go test -tags=integration
Running Suite: IamPolicyManagementV1 Suite
==========================================
Random Seed: 1713859488
Will run 262 of 262 specs

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------------------------------
• [SLOW TEST:6.396 seconds]
IAM Policy Management - Integration Tests
/Users/rajesh/iam-project/platform-sdk/platform-services-go-sdk/iampolicymanagementv1/iam_policy_management_v1_integration_test.go:38
  Create an access policy
  /Users/rajesh/iam-project/platform-sdk/platform-services-go-sdk/iampolicymanagementv1/iam_policy_management_v1_integration_test.go:118
    Successfully created an access policy
    /Users/rajesh/iam-project/platform-sdk/platform-services-go-sdk/iampolicymanagementv1/iam_policy_management_v1_integration_test.go:120
------------------------------
••••••••••••••••••••••••••••••••
Ran 262 of 262 Specs in 35.848 seconds
SUCCESS! -- 262 Passed | 0 Failed | 0 Pending | 0 Skipped
PASS
ok  	github.com/IBM/platform-services-go-sdk/iampolicymanagementv1	37.044s

examples:

"resources": [
    {
      "target": {
        "type": "Account",
        "id": "0ddc8e9eb0894383b48791ff4ba0b80e"
      },
      "policy": {
        "resource_created": {
          "id": "475f7d78-a26c-453f-9bab-3ac9ed165e2d"
        }
      }
    }
  ],
  "template": {
    "id": "policyTemplate-d701c21c-1a06-4666-b1da-05f1d29adea8",
    "version": "1"
  },
  "status": "succeeded"
}
•
GetV2Policy() result:
{
  "type": "authorization",
  "description": "Test Template v2",
  "subject": {
    "attributes": [
      {
        "key": "serviceName",
        "operator": "stringEquals",
        "value": "compliance"
      },
      {
        "key": "accountId",
        "operator": "stringEquals",
        "value": "0ddc8e9eb0894383b48791ff4ba0b80e"
      }
    ]
  },
  "resource": {
    "attributes": [
      {
        "key": "serviceName",
        "operator": "stringEquals",
        "value": "appid"
      },
      {
        "key": "accountId",
        "operator": "stringEquals",
        "value": "0ddc8e9eb0894383b48791ff4ba0b80e"
      }
    ]
  },
  "id": "475f7d78-a26c-453f-9bab-3ac9ed165e2d",
  "href": "https://iam.test.cloud.ibm.com/v1/policies/475f7d78-a26c-453f-9bab-3ac9ed165e2d",
  "control": {
    "grant": {
      "roles": [
        {
          "role_id": "crn:v1:bluemix:public:iam::::serviceRole:Reader"
        }
      ]
    }
  },
  "created_at": "2024-04-23T08:11:29.192Z",
  "created_by_id": "IBMid-56300",
  "last_modified_at": "2024-04-23T08:11:29.192Z",
  "last_modified_by_id": "IBMid-56300",
  "state": "active",
  "template": {
    "id": "policyTemplate-d701c21c-1a06-4666-b1da-05f1d29adea8",
    "version": "1",
    "assignment_id": "policyAssignment-692b5bc0-f558-4435-a1a7-e9e665c7f979"
  }
}
••••
Ran 261 of 261 Specs in 25.325 seconds
SUCCESS! -- 261 Passed | 0 Failed | 0 Pending | 0 Skipped
PASS
ok  	github.com/IBM/platform-services-go-sdk/iampolicymanagementv1	27.254s

[swcolley]

LGTM

[padamstx]

LGTM

[ibm-devx-sdk]

🎉 This PR is included in version 0.62.7 🎉

The release is available on GitHub release

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