chore(deps) Update Rust crate serde_json to 1.0.56 (#731)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

cli/tauri.js/test/jest/fixtures/app/src-tauri/Cargo.toml

@@ -21,7 +21,7 @@ icon = [
 ]
 
 [dependencies]
-serde_json = "1.0.55"
+serde_json = "1.0.56"
 serde = "1.0"
 serde_derive = "1.0"
 tiny_http = "0.7"