vim: Fix of 2 CVEs

CVE-2026-52858: fix possible code execution in python3complete/pythoncomplete by not executing import/from statements harvested from the buffer unless g:pythoncompleteallowimport is set upstream patch 9.2.0561...

CVE-2025-58410 GPU DDK - Multiple calls into PhysmemGEMPrimeExport can inherit write access permission for an existing read-only dma_buf import PMR

Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permissions to memory buffers exported as read-only. This is caused by improper handling of the memory protections for the buffer resource...