Update kombu from 4.2.0 to 4.2.1
Update kombu from 4.2.0 to 4.2.1
johngian/mozillians,mozilla/mozillians,akatsoulas/mozillians,akatsoulas/mozillians,mozilla/mozillians,mozilla/mozillians,johngian/mozillians,akatsoulas/mozillians,akatsoulas/mozillians,johngian/mozillians,johngian/mozillians,mozilla/mozillians