LLVM21 is not on aarch64 and macOS

[johnnynunez]

LLVM21 is only in x86 @yuriivcs

[yuriivcs]

Hi @johnnynunez
We will only support Hermetic builds for even versions of LLVM on macOS aarch64.
Hermetic builds are not currently supported for any ML project on macOS.

[johnnynunez]

Hi @johnnynunez We will only support Hermetic builds for even versions of LLVM on macOS aarch64. Hermetic builds are not currently supported for any ML project on macOS.

Perfect. But i think that aarch64 and x86 from Linux will be aligned. Right now not exists llvm19 and 21 from aarch64