Bump eta from 1.12.3 to 2.0.0 in /website (#941)

Bumps [eta](https://github.com/eta-dev/eta) from 1.12.3 to 2.0.0.
- [Release notes](https://github.com/eta-dev/eta/releases)
- [Commits](eta-dev/eta@v1.12.3...v2.0.0)

---
updated-dependencies:
- dependency-name: eta
  dependency-type: indirect
...

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Co-authored-by: Shaokun <shaokunzhang529@gmail.com>