feat: remove federatedConnectionsTokensets, add custom token exchange suspicious IP throttling stage, and internal fetcher improvements

[fern-api]

Changes

This SDK regeneration includes two breaking changes, a new feature related to custom token exchange GA, and internal fetcher improvements.

Breaking Changes

• client.users.federatedConnectionsTokensets removed - the entire sub-client including list() and delete() methods has been removed.
• federated_connections_access_tokens removed from UpdateConnectionOptions - this field is no longer accepted when updating a connection.

New Features

• pre-custom-token-exchange stage on SuspiciousIpThrottlingStage - new stage added to suspicious IP throttling configuration to support custom token exchange GA. New type
  SuspiciousIpThrottlingPreCustomTokenExchangeStage with max_attempts and rate fields.

Internal

• Improvements to getResponseBody.ts and signals.ts in the fetcher layer with unit test coverage added.

References

• Migration guide for breaking changes: v6_MIGRATION_GUIDE.md (to be updated in a follow-up PR)

Testing

Unit tests added for getResponseBody and signals fetcher changes.

• This change adds unit test coverage
• This change adds integration test coverage

Checklist

• I have read the Auth0 general contribution guidelines
• I have read the Auth0 Code of Conduct
• All existing and new tests complete without errors

✅ Customizations automatically preserved in this update.

[codecov]

Codecov Report

❌ Patch coverage is 98.33333% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.76%. Comparing base (066ff9e) to head (9397b0b).

Files with missing lines	Patch %	Lines
src/management/api/errors/ContentTooLargeError.ts	0.00%	1 Missing ⚠️
src/management/errors/ManagementTimeoutError.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@ Coverage Diff @@## master #1369 +/- ##
==========================================
+ Coverage 89.72% 89.76% +0.03% 
==========================================
Files 433 431 -2 Lines 20115 20108 -7 Branches 9426 9782 +356 ==========================================
+ Hits 18048 18049 +1 + Misses 2067 2059 -8 

Flag	Coverage Δ
alltests	89.76% <98.33%> (+0.03%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/management/api/errors/BadRequestError.ts	100.00% <100.00%> (ø)
src/management/api/errors/ConflictError.ts	100.00% <100.00%> (ø)
src/management/api/errors/ForbiddenError.ts	100.00% <100.00%> (ø)
src/management/api/errors/GoneError.ts	100.00% <100.00%> (ø)
src/management/api/errors/InternalServerError.ts	100.00% <100.00%> (ø)
src/management/api/errors/NotFoundError.ts	100.00% <100.00%> (ø)
src/management/api/errors/PaymentRequiredError.ts	100.00% <100.00%> (ø)
...c/management/api/errors/PreconditionFailedError.ts	100.00% <100.00%> (ø)
...c/management/api/errors/ServiceUnavailableError.ts	100.00% <100.00%> (ø)
src/management/api/errors/TooManyRequestsError.ts	100.00% <100.00%> (ø)
... and 43 more

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[developerkunal]

LGTM