Bump @sendgrid/mail from 6.4.0 to 6.5.1

Bumps [@sendgrid/mail](https://github.com/sendgrid/sendgrid-nodejs) from 6.4.0 to 6.5.1.
- [Release notes](https://github.com/sendgrid/sendgrid-nodejs/releases)
- [Changelog](https://github.com/sendgrid/sendgrid-nodejs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sendgrid/sendgrid-nodejs/compare/v6.4.0...6.5.1)

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

package.json

@@ -24,7 +24,7 @@
     "watch-sass": "node-sass --include-path ./node_modules/ -w -r -o web/public/styles/ web/public/styles/"
   },
   "dependencies": {
-    "@sendgrid/mail": "^6.3.1",
+    "@sendgrid/mail": "^6.5.1",
     "@sentry/node": "^5.11.1",
     "angular": "^1.7.9",
     "angular-reconnecting-websocket": "https://github.com/adieu/angular-reconnecting-websocket#0.1.1",