netatalk: update to 4.4.3
Security fixes (from upstream release notes):
CVE-2026-44047, CVE-2026-44048, CVE-2026-44049, CVE-2026-44050,
CVE-2026-44051, CVE-2026-44052, CVE-2026-44054, CVE-2026-44055,
CVE-2026-44057, CVE-2026-44060, CVE-2026-44062, CVE-2026-44064,
CVE-2026-44066, CVE-2026-44068, CVE-2026-44076, CVE-2026-45354,
CVE-2026-45355, CVE-2026-45356, CVE-2026-45698, CVE-2026-45699
As of v4.4.2, upstream added a dependency on libatomic.
UAM hardening improvements also included.
Release notes at:
https://github.com/Netatalk/netatalk/releases/tag/netatalk-4-4-3
Signed-off-by: Antonio Pastor <redacted>