Bump nodemailer from 5.1.1 to 6.6.1

Bumps [nodemailer](https://github.com/nodemailer/nodemailer) from 5.1.1 to 6.6.1.
- [Release notes](https://github.com/nodemailer/nodemailer/releases)
- [Changelog](https://github.com/nodemailer/nodemailer/blob/master/CHANGELOG.md)
- [Commits](nodemailer/nodemailer@v5.1.1...v6.6.1)

---
updated-dependencies:
- dependency-name: nodemailer
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package.json

@@ -6,7 +6,7 @@
   },
   "dependencies": {
     "express": "^4.6.14",
-    "nodemailer": "^5.1.1"
+    "nodemailer": "^6.6.1"
   },
   "devDependencies": {
     "eslint": "^5.9.0",

yarn.lock

@@ -1072,10 +1072,10 @@ nice-try@^1.0.4:
   resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.5.tgz#a3378a7696ce7d223e88fc9b764bd7ef1089e366"
   integrity sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==
 
-nodemailer@^5.1.1:
-  version "5.1.1"
-  resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-5.1.1.tgz#0c48d1ecab02e86d9ff6c620ee75ed944b763505"
-  integrity sha512-hKGCoeNdFL2W7S76J/Oucbw0/qRlfG815tENdhzcqTpSjKgAN91mFOqU2lQUflRRxFM7iZvCyaFcAR9noc/CqQ==
+nodemailer@^6.6.1:
+  version "6.6.1"
+  resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-6.6.1.tgz#2a05fbf205b897d71bf43884167b5d4d3bd01b99"
+  integrity sha512-1xzFN3gqv+/qJ6YRyxBxfTYstLNt0FCtZaFRvf4Sg9wxNGWbwFmGXVpfSi6ThGK6aRxAo+KjHtYSW8NvCsNSAg==
 
 normalize-package-data@^2.3.2:
   version "2.4.0"