Merge pull request 'introduce std.Io.File.MemoryMap API' (#30840) from mmap into master

Reviewed-on: https://codeberg.org/ziglang/zig/pulls/30840
84261222b4Andrew Kelley committed on 1/16/2026, 2:59:31 AMparents63f345a7b21fd7
17 files changedLine totals unavailable