databases/redis74: Update version 7.4.5=>7.4.6

Changelog: https://github.com/redis/redis/releases/tag/7.4.6

MFH: 2025Q4
Security: CVE-2025-49844
Security: CVE-2025-46817
Security: CVE-2025-46818
Security: CVE-2025-46819
(cherry picked from commit 67c695a5f242a6b60e3135f88d8b0f3723ede522)