Bump resend from 6.4.0 to 6.4.2

Bumps [resend](https://github.com/resend/resend-node) from 6.4.0 to 6.4.2.
- [Release notes](https://github.com/resend/resend-node/releases)
- [Commits](resend/resend-node@v6.4.0...v6.4.2)

---
updated-dependencies:
- dependency-name: resend
  dependency-version: 6.4.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]