Modernize i386 build
This switches the i386 build to bookworm too allowing us to use meson feautures up to 0.56.0 as used in !1041 (merged) by @sc0w
This switches the i386 build to bookworm too allowing us to use meson feautures up to 0.56.0 as used in !1041 (merged) by @sc0w