fix(cli): install iOS dependencies when needed (#13799)

currently deps are only installed on init, which might not be executed on someone's machine if the xcode project is commited to the repo. we need to ensure dependencies are installed before running them

applies tauri-apps/cargo-mobile2#468

Author: lucasfernog

.changes/install-ios-deps.md

@@ -0,0 +1,6 @@
+---
+"tauri-cli": patch:bug
+"@tauri-apps/cli": patch:bug
+---
+
+Install iOS dependencies when needed.

Cargo.lock

@@ -36,7 +36,7 @@ name = "cargo-tauri"
 path = "src/main.rs"
 
 [target."cfg(any(target_os = \"linux\", target_os = \"dragonfly\", target_os = \"freebsd\", target_os = \"openbsd\", target_os = \"netbsd\", target_os = \"windows\", target_os = \"macos\"))".dependencies]
-cargo-mobile2 = { version = "0.20", default-features = false }
+cargo-mobile2 = { version = "0.20.2", default-features = false }
 
 [dependencies]
 jsonrpsee = { version = "0.24", features = ["server"] }