Bump eslint-plugin-unicorn from 20.1.0 to 21.0.0 (#31370)

Bump eslint-plugin-unicorn from 20.1.0 to 21.0.0 (#31370)

* Bump eslint-plugin-unicorn from 20.1.0 to 21.0.0

Bumps [eslint-plugin-unicorn](https://github.com/sindresorhus/eslint-plugin-unicorn) from 20.1.0 to 21.0.0.
- [Release notes](https://github.com/sindresorhus/eslint-plugin-unicorn/releases)
- [Commits](https://github.com/sindresorhus/eslint-plugin-unicorn/compare/v20.1.0...v21.0.0)

Signed-off-by: dependabot[bot] <support@github.com>
* Disable `unicorn/prefer-array-find` rule for now

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: XhmikosR <xhmikosr@gmail.com>