appstream errors
If appstreamcli is installed, the giara build fails because the build test is reporting appstream errors:
E: org.gabmus.giara:143: screenshot-image-source-duplicated
E: org.gabmus.giara:144: screenshot-image-source-duplicated
E: org.gabmus.giara:145: screenshot-image-source-duplicated
E: org.gabmus.giara:146: screenshot-image-source-duplicated
E: org.gabmus.giara:147: screenshot-image-source-duplicated
E: org.gabmus.giara:148: screenshot-image-source-duplicated
E: org.gabmus.giara:149: screenshot-image-source-duplicated
E: org.gabmus.giara:277: custom-key-duplicated Purism::form_factor