[bug] `--target` option in `tauri ios build` doesn't accept target triples

[CrabNejonas]

Describe the bug

The --target flag, contrary to all other uses across Tauri and Rust doesn't accept full target triples instead having its own selection of valid target strings.

Reproduction

No response

Expected behavior

The --target flag should match the behavior of tauri build or cargo build and accept fully formed target triples

Full tauri info output

[✔] Environment
    - OS: Mac OS 14.5.0 X64
    ✔ Xcode Command Line Tools: installed
    ✔ rustc: 1.79.0 (129f3b996 2024-06-10)
    ✔ cargo: 1.79.0 (ffa9cf99a 2024-06-03)
    ✔ rustup: 1.27.1 (54dd3d00f 2024-04-24)
    ✔ Rust toolchain: stable-aarch64-apple-darwin (default)
    - node: 20.4.0
    - pnpm: 9.3.0
    - yarn: 1.22.22
    - npm: 9.7.2

[-] Packages
    - tauri [RUST]: 2.0.0-beta.22
    - tauri-build [RUST]: 2.0.0-beta.17
    - wry [RUST]: 0.40.1
    - tao [RUST]: 0.28.1
    - tauri-cli [RUST]: 2.0.0-beta.20
    - @tauri-apps/api [NPM]: 2.0.0-beta.7
    - @tauri-apps/cli [NPM]: 2.0.0-beta.12

[-] App
    - build-type: bundle
    - CSP: unset
    - frontendDist: ../dist
    - devUrl: http://localhost:1420/
    - framework: SolidJS
    - bundler: Vite

Stack trace

No response

Additional context

No response