Bump rubocop-ast from 0.1.0 to 0.2.0 (#2974)
Bump rubocop-ast from 0.1.0 to 0.2.0 (#2974)

Bumps [rubocop-ast](https://github.com/rubocop-hq/rubocop-ast) from 0.1.0 to 0.2.0.
- [Release notes](https://github.com/rubocop-hq/rubocop-ast/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop-ast/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop-ast/compare/v0.1.0...v0.2.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
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