Bump ejs and @11ty/eleventy

Bumps [ejs](https://github.com/mde/ejs) to 3.1.9 and updates ancestor dependency [@11ty/eleventy](https://github.com/11ty/eleventy). These dependencies need to be updated together.


Updates `ejs` from 2.7.4 to 3.1.9
- [Release notes](https://github.com/mde/ejs/releases)
- [Commits](mde/ejs@v2.7.4...v3.1.9)

Updates `@11ty/eleventy` from 0.12.1 to 2.0.1
- [Release notes](https://github.com/11ty/eleventy/releases)
- [Changelog](https://github.com/11ty/eleventy/blob/master/docs/release-instructions.md)
- [Commits](11ty/eleventy@v0.12.1...v2.0.1)

---
updated-dependencies:
- dependency-name: ejs
  dependency-type: indirect
- dependency-name: "@11ty/eleventy"
  dependency-type: direct:development
...

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