gnome-software and fwupd security, bug fix, and enhancement update

appstream-data 8-20200724 - Regenerate the RHEL metadata to include the EPEL apps too - Resolves: 1844488 8-20200630 - Regenerate the RHEL metadata - Resolves: 1844488 fwupd 1.4.2-4.0.1 - Build with the updated Oracle certificate - Use oraclesecureboot301 as certdir Orabug: 29881368 - Use new...