Bump ejs from 2.5.7 to 2.6.1

Bumps [ejs](https://github.com/mde/ejs) from 2.5.7 to 2.6.1.
- [Release notes](https://github.com/mde/ejs/releases)
- [Changelog](https://github.com/mde/ejs/blob/master/CHANGELOG.md)
- [Commits](mde/ejs@v2.5.7...v2.6.1)

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Author: dependabot-support