chore(deps): bump ejs and @nativescript/webpack

Bumps [ejs](https://github.com/mde/ejs) to 3.1.9 and updates ancestor dependency [@nativescript/webpack](https://github.com/NativeScript/nativescript-dev-webpack). These dependencies need to be updated together.


Updates `ejs` from 3.1.6 to 3.1.9
- [Release notes](https://github.com/mde/ejs/releases)
- [Commits](mde/ejs@v3.1.6...v3.1.9)

Updates `@nativescript/webpack` from 4.1.0 to 5.0.13
- [Release notes](https://github.com/NativeScript/nativescript-dev-webpack/releases)
- [Changelog](https://github.com/NativeScript/nativescript-dev-webpack/blob/master/CHANGELOG.md)
- [Commits](https://github.com/NativeScript/nativescript-dev-webpack/commits)

---
updated-dependencies:
- dependency-name: ejs
  dependency-type: indirect
- dependency-name: "@nativescript/webpack"
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>