chore(deps): bump nodemailer from 6.4.15 to 6.4.16 (#785)

Bumps [nodemailer](https://github.com/nodemailer/nodemailer) from 6.4.15 to 6.4.16.
- [Release notes](https://github.com/nodemailer/nodemailer/releases)
- [Changelog](https://github.com/nodemailer/nodemailer/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nodemailer/nodemailer/compare/v6.4.15...v6.4.16)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -37,7 +37,7 @@
     "node-hue-api": "^4.0.9",
     "node-notifier": "^8.0.0",
     "node-pagerduty": "^1.3.5",
-    "nodemailer": "^6.4.15",
+    "nodemailer": "^6.4.16",
     "open": "^7.3.0",
     "play-sound": "^1.1.3",
     "puppeteer": "^5.4.1",