Bump ejs from 3.1.3 to 3.1.7

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>

package.json

@@ -13,7 +13,7 @@
     },
     "dependencies": {
         "dotenv": "^8.2.0",
-        "ejs": "^3.1.3",
+        "ejs": "^3.1.7",
         "express": "^4.17.1",
         "socket.io": "^2.4.0"
     },