CLSA-2026-1775223344 freerdp: Fix of 3 CVEs

CVE-2023-39355: fix use-after-free in RDPGFXCMDIDRESETGRAPHICS handling when context-maxPlaneSize == 0; update context-planesBuffer after free and prevent access to freed memory - CVE-2026-26965: fix heap out-of-bounds write in RLE planar decode that permit attacker-controlled pixel data and...