Bump @11ty/eleventy from 0.12.1 to 1.0.0

Bumps [@11ty/eleventy](https://github.com/11ty/eleventy) from 0.12.1 to 1.0.0.
- [Release notes](https://github.com/11ty/eleventy/releases)
- [Changelog](https://github.com/11ty/eleventy/blob/master/docs/meta-release.md)
- [Commits](11ty/eleventy@v0.12.1...v1.0.0)

---
updated-dependencies:
- dependency-name: "@11ty/eleventy"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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