Security update for gstreamer-plugins-base

This update for gstreamer-plugins-base fixes the following issues: CVE-2025-47808: Fixed NULL-pointer dereference in TMPlayer subtitle parser bsc1244404. CVE-2025-47807: Fixed NULL-pointer dereference in SubRip subtitle parser bsc1244403. CVE-2025-47806: Fixed stack buffer overflow in SubRip...