docs: Update TokenDialect option details in go-auth0 documentation

[developerkunal]

🔧 Changes

• docs: Update TokenDialect option details in go-auth0 documentation

📚 References

• Access Token Profiles

🔬 Testing

• Updated tests to create and update the TokenDialect to ensure proper handling of the new documentation and functionality.

📝 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 95.37%. Comparing base (7221b14) to head (9ca45cc).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #414   +/-   ##
=======================================
  Coverage   95.37%   95.37%           
=======================================
  Files          47       47           
  Lines        7614     7614           
=======================================
  Hits         7262     7262           
  Misses        235      235           
  Partials      117      117           

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