fix: auto-stamp SDK_VERSION from package.json during build

[ankita10119]

Changes

What: Added scripts/update-version.js to auto-stamp SDK_VERSION in src/management/version.ts from package.json before compilation. Hooked into the build script so thisnruns automatically during CI publish.

Why: In 5.14.0 and 6.0.0 releases, src/management/version.ts was not updated manually before release, causing the published npm package to report the wrong SDK_VERSION in the Auth0-Client telemetry header. This fix eliminates the manual step entirely, the correct version is always stamped at build time regardless.

No public API changes. No endpoints added, removed, or modified.

References

• Affected versions: auth0@5.14.0, auth0@6.0.0

Testing

• 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

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.62%. Comparing base (ec645b1) to head (1f25d30).

Additional details and impacted files

@@           Coverage Diff            @@
##               v5    #1383    +/-   ##
========================================
  Coverage   89.62%   89.62%            
========================================
  Files         428      428            
  Lines       19886    19886            
  Branches     9400     9757   +357     
========================================
  Hits        17823    17823            
  Misses       2063     2063            

Flag	Coverage Δ
alltests	89.62% <100.00%> (ø)

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

Files with missing lines	Coverage Δ
src/management/version.ts	100.00% <100.00%> (ø)

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