Bump ejs and @types/ejs

Bumps [ejs](https://github.com/mde/ejs) and [@types/ejs](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/ejs). These dependencies needed to be updated together.

Updates `ejs` from 3.1.7 to 3.1.9
- [Release notes](https://github.com/mde/ejs/releases)
- [Commits](mde/ejs@v3.1.7...v3.1.9)

Updates `@types/ejs` from 3.0.7 to 3.1.5
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/ejs)

---
updated-dependencies:
- dependency-name: ejs
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: "@types/ejs"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -433,7 +433,7 @@
   "devDependencies": {
     "@types/chai": "^4.2.3",
     "@types/chai-fs": "^2.0.4",
-    "@types/ejs": "^3.0.5",
+    "@types/ejs": "^3.1.5",
     "@types/fs-extra": "^11.0.4",
     "@types/js-yaml": "^4.0.9",
     "@types/lodash": "^4.14.202",
@@ -465,7 +465,7 @@
   "dependencies": {
     "@redhat-developer/vscode-extension-proposals": "^0.0.22",
     "@redhat-developer/vscode-redhat-telemetry": "^0.7.1",
-    "ejs": "^3.1.7",
+    "ejs": "^3.1.9",
     "expand-home-dir": "0.0.3",
     "find-up": "^4.1.0",
     "fs-extra": "^11.2.0",