feat: support default values in request templates - #31

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: clechasseur/rs-clippy-check@v3. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

warning: match expression looks like `matches!` macro --> src/args.rs:143:9 | 143 | / match self.use_colors() { 144 | | ColorChoice::Never => false, 145 | | _ => true, 146 | | } | |_________^ | = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.98.0/index.html#match_like_matches_macro = note: `#[warn(clippy::match_like_matches_macro)]` on by default help: use `matches!` directly | 143 - match self.use_colors() { 144 - ColorChoice::Never => false, 145 - _ => true, 146 - } 143 + !matches!(self.use_colors(), ColorChoice::Never) |

warning: variants `Key` and `Value` are never constructed --> src/prop.rs:88:5 | 86 | pub enum ParsePropertyError { | ------------------ variants in this enum 87 | Entry(String), 88 | Key(String), | ^^^ 89 | Value(String), | ^^^^^ | = note: `ParsePropertyError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis

warning: function `write_body` is never used --> src/io.rs:34:8 | 34 | pub fn write_body(stream: &mut StandardStream, content_type: Option<&str>, body: String) { | ^^^^^^^^^^

warning: function `write_spec` is never used --> src/io.rs:24:8 | 24 | pub fn write_spec(stream: &mut StandardStream, content: &str, spec: &ColorSpec) { | ^^^^^^^^^^

warning: function `writeln_color` is never used --> src/io.rs:19:8 | 19 | pub fn writeln_color(stream: &mut StandardStream, content: &str, color: Option<Color>) { | ^^^^^^^^^^^^^

warning: variant `NotAFile` is never constructed --> src/error.rs:20:5 | 15 | pub enum FireError { | --------- variant in this enum ... 20 | NotAFile(PathBuf), | ^^^^^^^^

warning: trait `Error` is never used --> src/error.rs:13:11 | 13 | pub trait Error: StdError + Termination {} | ^^^^^ | = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default

warning: redundant reference in `format!` argument --> httpx/src/lib.rs:39:47 | 39 | Url::parse(&format!("https://{}", &self.url)) | ^^^^^^^^^ help: remove the redundant `&`: `self.url` | = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.98.0/index.html#useless_borrows_in_formatting = note: `#[warn(clippy::useless_borrows_in_formatting)]` on by default

Unexpected input(s) 'token', valid inputs are ['toolchain', 'args', 'use-cross', 'working-directory']