v0.7.0

Changed

• Raise an error when trying to use a consumer after it has been closed
• Add Consumer#stop method to stop an each loop
• Add crystal versions 1.15.1 and 1.16.3 to test matrix

Fixed

• Use ::sleep(Time::Span) instead of ::sleep(Number) to fix deprecations warnings with Crystal >= 1.14

Full Changelog: v0.6.0...v0.7.0