SUSE-SU-2026:20904-1 Security update for cosign

This update for cosign fixes the following issues: Update to version 3.0.5: - CVE-2026-24122: Fixed improper validation of certificates that outlive expired CA certificates bsc1258542 - CVE-2026-26958: Fixed filippo.io/edwards25519: failure to initialize receiver in MultiScalarMult can produce...