Retrack

What's Changed
* New Conditional Connector type by gabrielguarisa in https://github.com/pier-digital/retrack/pull/31


**Full Changelog**: https://github.com/pier-digital/retrack/compare/v2.6.0...v2.7.0

What's Changed
* B/fix-sub-rule-missing-input by gabrielguarisa in https://github.com/pier-digital/retrack/pull/30


**Full Changelog**: https://github.com/pier-digital/retrack/compare/v2.5.1...v2.6.0

What's Changed
* Set empty strings to null in metadata fields by gabrielguarisa in https://github.com/pier-digital/retrack/pull/29


**Full Changelog**: https://github.com/pier-digital/retrack/compare/v2.5.0...v2.5.1