fix: correct default dispatch throttle enabled

[adriantam]

Description

Initialization of server dispatch throttle enabled should use default dispatch throttle enabled

References

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]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.02%. Comparing base (629c27d) to head (d576708).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1479      +/-   ##
==========================================
- Coverage   86.09%   86.02%   -0.07%     
==========================================
  Files          85       85              
  Lines        8044     8044              
==========================================
- Hits         6925     6919       -6     
- Misses        789      793       +4     
- Partials      330      332       +2     

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