Bump nodemailer from 6.4.7 to 6.4.8

Bumps [nodemailer](https://github.com/nodemailer/nodemailer) from 6.4.7 to 6.4.8.
- [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/v6.4.7...v6.4.8)

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

package-lock.json

@@ -5775,9 +5775,9 @@
       "dev": true
     },
     "nodemailer": {
-      "version": "6.4.7",
-      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.4.7.tgz",
-      "integrity": "sha512-lreSSov6kugFFmFWrs2fcNHqUe705wy3VTuHKNevTHWTrnQNZCzWEFHXf2j+Y65dbB5cpPenX0n3ZCUaPlTTGQ=="
+      "version": "6.4.8",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.4.8.tgz",
+      "integrity": "sha512-UbJD0+g5e2H20bWv7Rpj3B+N3TMMJ0MLoLwaGVJ0k3Vo8upq0UltwHJ5BJfrpST1vFa91JQ8cf7cICK5DSIo1Q=="
     },
     "nodemon": {
       "version": "2.0.4",

package.json

@@ -46,7 +46,7 @@
     "ip-sub": "^1.0.7",
     "js-yaml": "^3.14.0",
     "kafka-node": "^5.0.0",
-    "nodemailer": "^6.4.7",
+    "nodemailer": "^6.4.8",
     "path": "^0.12.7",
     "restify": "^8.5.1",
     "rpki-validator": "^1.0.16",