release/v0.1.0-beta.3をmainブランチにマージ

[YuukiToriyama]

No description provided.

[github-actions]

⚠️ [clippy] _{reported by reviewdog 🐶}

warning: you should consider adding a `Default` implementation for `Parser`
  --> src/lib.rs:18:5
   |
18 | /     pub fn new() -> Self {
19 | |         Parser {}
20 | |     }
   | |_____^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
   = note: `#[warn(clippy::new_without_default)]` on by default
help: try adding this
   |
16 + impl Default for Parser {
17 +     fn default() -> Self {
18 +         Self::new()
19 +     }
20 + }
   |