net/rsync: update to 3.4.0

Full changelog: https://download.samba.org/pub/rsync/NEWS#3.4.0

Security: CVE-2024-12084 - Heap Buffer Overflow in Checksum Parsing
Security: CVE-2024-12085 - Info Leak via uninitialized Stack contents defeats ASLR
Security: CVE-2024-12086 - Server leaks arbitrary client files
Security: CVE-2024-12087 - Server can make client write files outside of destination directory using symbolic links
Security: CVE-2024-12088 - --safe-links Bypass
Security: CVE-2024-12747 -⁠ symlink race condition

PR: 284064
Reported by: osa