fe0f5ae OSBS: switch to use flatpak-build-base image for flatpak builds

2 files Authored by kalev 3 years ago, Committed by cverna 3 years ago,
    OSBS: switch to use flatpak-build-base image for flatpak builds
    
    Fixes https://pagure.io/fedora-infrastructure/issue/8983
    
    Signed-off-by: Kalev Lember <klember@redhat.com>