gstreamer1.0: ignore CVE-2025-2759
Copy statement from [1] that it is problem of installers (non-Linux).
Also [2] linked in NVD says "Fixed in 1.25.1 Gstreamer Installer".
Since Yocto builds from sources into our own packages, ignore it.
[1] https://security-tracker.debian.org/tracker/CVE-2025-2759
[2] https://www.zerodayinitiative.com/advisories/ZDI-25-268/
(From OE-Core rev: 99ee1df6bde2ffd4fa2ddea44c0a9b94d9d77bae)
Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>