net/rclone: Update 1.74.3 => 1.74.4 (fix multiple vulnerabilities)

Changelog:
https://rclone.org/changelog/#v1-74-4-2026-07-08

PR: 296666
Security: CVE-2026-59732
Security: CVE-2026-46604
Security: CVE-2026-46602
Security: CVE-2026-46601
Security: CVE-2026-33813
Security: CVE-2026-59733
Security: GHSA-8v25-v8p6-qf7v
Security: CVE-2026-54572
Security: GHSA-945v-v9p3-v5xw
Sponsored by: UNIS Labs
MFH: 2026Q3

(cherry picked from commit abda3090901b65909d7227ab283aeff72b122b05)