fix(package): update ejs to version 3.1.2

Closes #73

Author: greenkeeper[bot]

package.json

@@ -38,7 +38,7 @@
     "csv-parser": "^2.0.0",
     "csv-stringify": "^4.0.1",
     "date-fns": "^1.29.0",
-    "ejs": "^2.6.1",
+    "ejs": "^3.1.2",
     "email-templates": "^5.0.1",
     "email-validator": "^2.0.4",
     "event-stream": "^4.0.0",