Add example for org client grant resource

[duedares-rvj]

We had missed adding an example for auth0_organization_client_grant earlier.
Adding it here.

🔧 Changes

📚 References

🔬 Testing

📝 Checklist

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.35%. Comparing base (ec2597c) to head (7567904).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1078   +/-   ##
=======================================
  Coverage   89.35%   89.35%           
=======================================
  Files         127      127           
  Lines       17591    17591           
=======================================
  Hits        15718    15718           
  Misses       1325     1325           
  Partials      548      548           

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