Update rubocop-performance requirement from = 1.5.2 to = 1.6.1 (#62)
Update rubocop-performance requirement from = 1.5.2 to = 1.6.1 (#62)

Updates the requirements on [rubocop-performance](https://github.com/rubocop-hq/rubocop-performance) to permit the latest version.
- [Release notes](https://github.com/rubocop-hq/rubocop-performance/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop-performance/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop-performance/compare/v1.5.2...v1.6.1)

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

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