chore(deps): bump core-js to ^3.43.0 (SEC-2238)

[katesaikishore]

Changes

• Dependency bump: Updated core-js from ^3.20.3 to ^3.43.0 in package.json (devDependencies).
• Why:
  • Eliminates the operational-risk install scripts identified in SEC-2238.
  • Moves off a deprecated version of core-js, ensuring continued upstream maintenance and security fixes.
• Scope:
  • No API endpoints, classes, methods, or UI have been added, removed, or modified.
  • This is purely a development dependency update; there are no user-facing changes.

References

• SEC-2238 JIRA Ticket: https://auth0team.atlassian.net/browse/SEC-2238
• Socket.dev Alert (installScripts): https://socket.dev/npm/package/core-js/alerts/3.20.3?alert_name=installScripts
• Socket.dev Alert (deprecated): https://socket.dev/npm/package/core-js/alerts/3.20.3?alert_name=deprecated
• Upstream repository: https://github.com/auth0/angular2-jwt

Checklist

• I have read the Auth0 general contribution guidelines
• I have read the Auth0 Code of Conduct
• All code quality tools/guidelines in the CONTRIBUTING documentation have been run/followed
• All relevant assets have been compiled as directed in the CONTRIBUTING documentation, if applicable

[arpit-jn]

LGTM