Update dependency ejs to v3

Author: renovate-bot

package.json

@@ -4,7 +4,7 @@
   "version": "0.0.1",
   "dependencies": {
     "debug": "^2.6.9",
-    "ejs": "^2.5.6",
+    "ejs": "3.1.6",
     "hoek": "^4.0.0",
     "npm": "^7.0.0",
     "streaming-json-stringify": "^3.1.0"