Bump ejs from 3.1.8 to 3.1.9 in /src (#3359)

Bumps [ejs](https://github.com/mde/ejs) from 3.1.8 to 3.1.9.
- [Release notes](https://github.com/mde/ejs/releases)
- [Commits](mde/ejs@v3.1.8...v3.1.9)

---
updated-dependencies:
- dependency-name: ejs
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/package-lock.json

@@ -34,7 +34,7 @@
     "timestamps": "node ./tools/generate/generate_timestamps"
   },
   "devDependencies": {
-    "ejs": "3.1.8",
+    "ejs": "3.1.9",
     "fs-extra": "11.1.0",
     "jsdom": "21.1.1",
     "node-fetch": "3.3.0",