v2026.4.3

A small patch release that fixes a compile error preventing mise from building on 32-bit ARM (armv7) targets.

## Fixed

- **seccomp network filter build on armv7** -- The seccomp sandbox code that restricts network access during `mise exec` failed to compile on armv7 targets. The `libc::SYS_socket` and `libc::SYS_socketpair` constants are `i32` on 32-bit platforms but the rule map expects `i64` keys, causing a type mismatch. An explicit `as i64` cast fixes the build while remaining a no-op on 64-bit platforms. [#8869](https://github.com/jdx/mise/pull/8869) by @jdx

**Full Changelog**: https://github.com/jdx/mise/compare/v2026.4.2...v2026.4.3