Add CHANGELOG for #42674
Add CHANGELOG for #42674

Fixes https://github.com/rails/rails/pull/42674#issuecomment-877714992

cc @zzak
rails/rails,lcreid/rails,Vasfed/rails,Edouard-chin/rails,Erol/rails,yahonda/rails,georgeclaghorn/rails,Edouard-chin/rails,BlakeWilliams/rails,MSP-Greg/rails,kddeisz/rails,yawboakye/rails,kmcphillips/rails,Vasfed/rails,Stellenticket/rails,lcreid/rails,georgeclaghorn/rails,MSP-Greg/rails,esparta/rails,georgeclaghorn/rails,Erol/rails,lcreid/rails,kddeisz/rails,BlakeWilliams/rails,yawboakye/rails,esparta/rails,yahonda/rails,kmcphillips/rails,kddeisz/rails,Stellenticket/rails,Edouard-chin/rails,Envek/rails,kmcphillips/rails,yahonda/rails,yahonda/rails,Vasfed/rails,BlakeWilliams/rails,yawboakye/rails,esparta/rails,MSP-Greg/rails,Stellenticket/rails,Edouard-chin/rails,yawboakye/rails,rails/rails,georgeclaghorn/rails,BlakeWilliams/rails,rails/rails,Erol/rails,Vasfed/rails,Envek/rails,kmcphillips/rails,esparta/rails,rails/rails,kddeisz/rails,Erol/rails,Envek/rails,Envek/rails,MSP-Greg/rails,lcreid/rails,Stellenticket/rails