fix: oh-my-zsh step issue #646

[SteveLauC]

Standards checklist:

• The PR title is descriptive.
• I have read CONTRIBUTING.md
• The code compiles (cargo build)
• The code passes rustfmt (cargo fmt)
• The code passes clippy (cargo clippy)
• The code passes tests (cargo test)
• Optional: I have tested the code myself

This PR fixes #646 by using the script provided by @romkatv, I am not entirely sure about the root cause of that issue, but obviously, the new script is better, so let's use it instead, thanks for your help:)

[SteveLauC]

@lbonvarl, here is a build of this commit, you can give it a test:)

[lbonvarl]

tested on ARM64 Debian 12 via SSH. fix works

[SteveLauC]

tested on ARM64 Debian 12 via SSH. fix works

Thanks!