Port retry and client validation changes

[ewanharris]

Description

Ports changes over relating to the default max retries limit and client validation

References

openfga/sdk-generator#457
openfga/sdk-generator#420

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

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.92%. Comparing base (1c690e8) to head (71805f0).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #155      +/-   ##
==========================================
+ Coverage   68.79%   68.92%   +0.12%     
==========================================
  Files         124      124              
  Lines        9929     9853      -76     
==========================================
- Hits         6831     6791      -40     
+ Misses       3098     3062      -36     

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