Bump ejs from 2.7.4 to 3.1.7 (#300)

Bumps [ejs](https://github.com/mde/ejs) from 2.7.4 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/v2.7.4...v3.1.7)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Tadej Novak <tadej@tano.si>

package.json

@@ -33,7 +33,7 @@
     "csscolorparser": "~1.0.2",
     "d3-queue": "3.0.7",
     "diff": "4.0.1",
-    "ejs": "^2.5.7",
+    "ejs": "^3.1.7",
     "esm": "~3.2.25",
     "express": "^4.11.1",
     "json-stringify-pretty-compact": "^2.0.0",