weldr-client security update

35.12-4 - Bump release for y-stream AND z-stream building using centpkg build --rhel-target=zstream Related: RHEL-89344 35.12-3 - tests: OSTree does not support the qcow2 image type - Add test repositories for RHEL 9.6 and 9.7 - Rebuild for CVE-2025-22871 Resolves: RHEL-89344...