Fix arch

[tseaward]

Description

JuliaCall cannot find the correct version of Julia on M-series Mac.

1. The command Sys.info()["machine"] returns aarch64 on my M2 MacBook Air. This is not catered for in julia_url();
2. julia_latest_version() returns the incorrect value since v1.10 as it uses string sorting to find the maximum version; and
3. short_version in julia_url() is set incorrectly since v1.10 since it only subsets the first 3 characters.

Related Issue

Example

[tseaward]

@Non-Contradiction