Update 7zip to 26.01 due to 8.8 rated CVE vulnerability

[clyde-graham]

Unless I have missed something, Stability Matrix is still using 18.01. You absolutely need to update to 26.01.

CVE-2026-48095: 7-Zip Heap Buffer Overflow Can Lead to Code Execution

I don't see an open issue for this, so I am uncertain if it's already in the works.