Bump ejs from 2.5.7 to 2.6.1

Bumps [ejs](https://github.com/mde/ejs) from 2.5.7 to 2.6.1.
- [Release notes](https://github.com/mde/ejs/releases)
- [Changelog](https://github.com/mde/ejs/blob/master/CHANGELOG.md)
- [Commits](mde/ejs@v2.5.7...v2.6.1)

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

Author: dependabot-support

package-lock.json

@@ -12,7 +12,7 @@
   "dependencies": {
     "body-parser": "^1.18.2",
     "cors": "^2.8.4",
-    "ejs": "^2.5.7",
+    "ejs": "^2.6.1",
     "email-templates": "^3.1.8",
     "express": "^4.16.2",
     "formidable": "^1.1.1",