Recommend cranelift on macOS

[janhohenheim]

See #1523 for context.

Blocked by:

• Bevy crashes at startup on macOS rust-lang/rustc_codegen_cranelift#1507
• Distribute rustc_codegen_cranelift for arm64 macOS rust-lang/rust#127177
• Tracking issue for abi-cafe failures rust-lang/rustc_codegen_cranelift#1525

[bjorn3]

cg_clif is now shipped on arm64 macOS. It still has an abi compat issue with cg_llvm though (rust-lang/rustc_codegen_cranelift#1525) which recommending usage of cg_clif on macOS should be blocked on IMO.