[Backport][v1.69.x][CI] Migration of Macos CI to sonoma-apple-silicon vm - 1#39383

veblush merged 1 commit intogrpc:v1.69.xgrpc/grpc:v1.69.xfrom

drfloob:backport_38967_to_v1.69.xdrfloob/grpc:backport_38967_to_v1.69.xCopy head branch name to clipboard