feat(Global Catalog): support non ibm only visibility

[benbuchanan]

PR summary

Allow updates to GC object visibility.restrictions field. Updated docs for the "non ibm only" restriction type. Other doc updates and metadata fields were added.

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

Used to not be able to update the restrictions field on a visibility update, but have always been able to in the API, so now you can in the SDK.

Does this PR introduce a breaking change?

• Yes
• No

Other information

Integration tests:

python3 -m pytest test/integration/test_global_catalog_v1.py
===================================================================== test session starts =====================================================================
platform darwin -- Python 3.13.2, pytest-7.4.4, pluggy-1.6.0
rootdir: /Users/benbuchanan/Developer/platform-services-python-sdk
plugins: cov-4.1.0
collected 27 items                                                                                                                                            

test/integration/test_global_catalog_v1.py ...........................                                                                                  [100%]

====================================================================== warnings summary =======================================================================
test/integration/test_global_catalog_v1.py: 14 warnings
  /Users/benbuchanan/Developer/platform-services-python-sdk/venv/lib/python3.13/site-packages/ibm_cloud_sdk_core/api_exception.py:56: DeprecationWarning: Using the `code` attribute on the `ApiException` is deprecated and will be removed in the future. Use `status_code` instead.
    warnings.warn(

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
============================================================== 27 passed, 14 warnings in 20.94s ===============================================================

Example tests:

python3 -m pytest examples/test_global_catalog_v1_examples.py
===================================================================== test session starts =====================================================================
platform darwin -- Python 3.13.2, pytest-7.4.4, pluggy-1.6.0
rootdir: /Users/benbuchanan/Developer/platform-services-python-sdk
plugins: cov-4.1.0
collected 15 items                                                                                                                                            

examples/test_global_catalog_v1_examples.py ...............                                                                                             [100%]

===================================================================== 15 passed in 3.94s ======================================================================

[padamstx]

LGTM

[ibm-devx-sdk]

🎉 This PR is included in version 0.66.0 🎉

The release is available on GitHub release

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