resend 6.9.4 on Node.js NPM

What's Changed

chore(deps): update dependency tsdown to v0.21.0 by @renovate[bot] in #868
chore(deps): update pnpm to v10.30.3 by @renovate[bot] in #846
chore(deps): update tj-actions/changed-files digest to c23d52b by @renovate[bot] in #851
chore(deps): update pnpm/action-setup digest to 9b5745c by @renovate[bot] in #852
chore(deps): update dependency rimraf to v6.1.3 by @renovate[bot] in #850
chore(deps): update dependency @types/react to v19.2.14 by @renovate[bot] in #845
chore(deps): update dependency dotenv to v17.3.1 by @renovate[bot] in #848
fix(deps): update dependency svix to v1.86.0 by @renovate[bot] in #849
chore(deps): update dependency @types/node to v24.11.0 by @renovate[bot] in #856
chore(deps): update dependency @biomejs/biome to v2.4.6 by @renovate[bot] in #847
feat(api-keys): add last_used_at field to API key response by @joaopcm in #877
chore(deps): update dependency @biomejs/biome to v2.4.7 by @renovate[bot] in #879
chore: bump package version to 6.9.4 by @joaopcm in #878

Full Changelog: v6.9.3...v6.9.4