Bump ejs from 2.5.7 to 3.1.3

Bumps [ejs](https://github.com/mde/ejs) from 2.5.7 to 3.1.3.
- [Release notes](https://github.com/mde/ejs/releases)
- [Changelog](https://github.com/mde/ejs/blob/master/CHANGELOG.md)
- [Commits](mde/ejs@v2.5.7...v3.1.3)

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

Author: dependabot-preview[bot]