chore(deps) Update Rust crate ico to 0.3 (#5929)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

core/tauri-codegen/Cargo.toml

@@ -26,7 +26,7 @@ brotli = { version = "3", optional = true, default-features = false, features =
 regex = { version = "1.7.0", optional = true }
 uuid = { version = "1", features = [ "v4" ] }
 semver = "1"
-ico = "0.2"
+ico = "0.3"
 png = "0.17"
 json-patch = "0.3"