SUSE-SU-2026:23162-1 Security update for helm

This update for helm fixes the following issues: Update to version 3.21.3. - CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allows for validation bypass and privilege escalation bsc1266598. - CVE-2026-48978: oras.land/oras-go/v2/registry/remote/auth:...