fix: auth apis create subject type authorization validation

[kushalshit27]

🔧 Changes

Fix auth apis create subject type authorization default value validation

auth0 apis create
=== <tenant-domain> error

 ▸    Invalid JSON for subject-type-authorization: unexpected end of JSON input.

📚 References

• feat: Support application access permissions #1315

🔬 Testing

Test pass - ✅

📝 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)