feat(IAM Policy Management): re-gen service after recent API changes for role template references

[bbellamgari]

PR summary

This PR includes changes for role_template_references changes for policy template creation.

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

Currently we do not support role_template_references in policy templates. With this new behaviour, we are adding that functionality

Does this PR introduce a breaking change?

• Yes
• No

Other information

https://github.ibm.com/IAM/AM-issues/issues/4045

[CLAassistant]

All committers have signed the CLA.

[bbellamgari]

$ pytest test/integration/test_iam_policy_management_v1.py 
================================================================================================================ test session starts ================================================================================================================
platform darwin -- Python 3.10.17, pytest-7.4.4, pluggy-1.6.0
rootdir: /Users/bhavanabellamgari/PlatformServicesSDKs/platform-services-python-sdk
plugins: cov-4.1.0
collected 73 items                                                                                                                                                                                                                                  

test/integration/test_iam_policy_management_v1.py .........................................................................                                                                                                                   [100%]

================================================================================================================ 73 passed in 57.35s ================================================================================================================

$ pytest examples/test_iam_policy_management_v1_examples.py 
================================================================================================================ test session starts ================================================================================================================
platform darwin -- Python 3.10.17, pytest-7.4.4, pluggy-1.6.0
rootdir: /Users/bhavanabellamgari/PlatformServicesSDKs/platform-services-python-sdk
plugins: cov-4.1.0
collected 65 items                                                                                                                                                                                                                                  

examples/test_iam_policy_management_v1_examples.py .................................................................                                                                                                                          [100%]

=========================================================================================================== 65 passed in 60.04s (0:01:00) ===========================================================================================================

[pyrooka]

Looks good!

[ibm-devx-sdk]

🎉 This PR is included in version 0.72.0 🎉

The release is available on GitHub release

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