Chore: Add generator changes

[ryanpq]

Description

This PR updates with the latest on main in sdk-generator including:

• docs: missing import in ClientCredentials example
• fix: error correctly if apiUrl is not provided
• [PATCH] docs:replace readable names with uuid
• fix: update SDK contributing docs

References

openfga/sdk-generator#427
openfga/sdk-generator@9553cc3
openfga/sdk-generator@d1d472e
openfga/sdk-generator#434

Review Checklist

• I have clicked on "allow edits by maintainers".
• I have added documentation for new/changed functionality in this PR or in a PR to openfga.dev [Provide a link to any relevant PRs in the references section above]
• The correct base branch is being used, if not main
• I have added tests to validate that the change in functionality is working as expected

If you haven't done so yet, we would appreciate it if you could star the OpenFGA repository. :)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.70%. Comparing base (0494769) to head (6be3050).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #174      +/-   ##
==========================================
+ Coverage   87.59%   87.70%   +0.10%     
==========================================
  Files          23       23              
  Lines        1129     1139      +10     
  Branches      195      177      -18     
==========================================
+ Hits          989      999      +10     
  Misses         83       83              
  Partials       57       57              

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