Security update for kubevirt

This update for kubevirt fixes the following issues: Security: re-vendor the bundled Go dependencies no upstream source changes; tarball rebuilt from v1.7.4 with updated go.mod/vendor: golang.org/x/net v0.48.0 - v0.55.0: CVE-2026-33814 bsc1265736, CVE-2026-39821 bsc1266575, CVE-2026-25680,...