fix(contacts): types for first_name and last_name in update and get

[gabrielmfern]

Also bumps the version to 6.5.2

closes #646

---

Summary by cubic

Fixes contact name types to match API behavior: GET returns first_name/last_name as string | null, and updates accept string | null to allow clearing. Bumps package to 6.5.2.

• Bug Fixes

  • Contact interface: first_name/last_name are now string | null.
  • UpdateContactOptions: firstName/lastName accept string | null (use null to clear).

• Dependencies

  • Version bumped to 6.5.2.

^{Written for commit 8b8f2d0. Summary will update automatically on new commits.}

[pkg-pr-new]

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npm i https://pkg.pr.new/resend/resend-node/resend@757

commit: 8b8f2d0

[cubic-dev-ai]

No issues found across 3 files