marquiz: Polish test-infra scripts a bit

JobBuild
362
09-15 09:05
pull-node-feature-discovery-build 1308170841288085504 1305794775265316864
pull-node-feature-discovery-build-image 1308170841321639936 1305794775261122561
pull-node-feature-discovery-verify 1308170841262919680 1305794775261122560