Bump ejs from 3.1.3 to 3.1.7 in /website-generator

Bumps [ejs](https://github.com/mde/ejs) from 3.1.3 to 3.1.7.
- [Release notes](https://github.com/mde/ejs/releases)
- [Changelog](https://github.com/mde/ejs/blob/main/CHANGELOG.md)
- [Commits](https://github.com/mde/ejs/compare/v3.1.3...v3.1.7)

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

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

website-generator/package.json

@@ -17,7 +17,7 @@
     "body-parser": "^1.19.0",
     "cors": "^2.8.5",
     "csvtojson": "^2.0.10",
-    "ejs": "^3.1.3",
+    "ejs": "^3.1.7",
     "express": "^4.17.0",
     "express-session": "^1.16.2",
     "fs-extra": "^8.1.0",