Clear JobBuffer on teardown
Clear JobBuffer on teardown

ActiveJob tests should be able to rely on a clean JobBuffer in each test.

esparta/rails,Erol/rails,georgeclaghorn/rails,yawboakye/rails,georgeclaghorn/rails,yahonda/rails,esparta/rails,yawboakye/rails,yahonda/rails,MSP-Greg/rails,yawboakye/rails,rails/rails,yahonda/rails,yahonda/rails,Erol/rails,rails/rails,rails/rails,yawboakye/rails,esparta/rails,BlakeWilliams/rails,MSP-Greg/rails,georgeclaghorn/rails,Erol/rails,rails/rails,MSP-Greg/rails,Erol/rails,BlakeWilliams/rails,esparta/rails,BlakeWilliams/rails,MSP-Greg/rails,BlakeWilliams/rails,georgeclaghorn/rails