Bump ejs from 2.6.1 to 3.0.1

Bumps [ejs](https://github.com/mde/ejs) from 2.6.1 to 3.0.1.
- [Release notes](https://github.com/mde/ejs/releases)
- [Changelog](https://github.com/mde/ejs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mde/ejs/compare/v2.6.1...v3.0.1)

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

package.json

@@ -32,7 +32,7 @@
     "co": "~4.6.0",
     "css-loader": "^2.1.1",
     "debug": "^4.1.1",
-    "ejs": "^2.5.9",
+    "ejs": "^3.0.1",
     "file-loader": "^5.0.2",
     "iso8601-duration": "^1.1.1",
     "kcors": "^2.2.1",