- set 1.62 Rust as MSRV
- use new fmt syntax where possible
- refactor `.to_owned()`, `.to_string()` and `.into()` usage
- rename `IntoResolvable::into()` as `IntoResolvable::into_resolvable()` to disambiguate with `Into::into()`
- use `#[derive(Default)]` for enums where possible
- use `bool::then_some()` where possible
- replace `Token` with its string representation in `ParseError`
- strip lifetime parameter from `GraphQLError`, `GraphQLResponse` and `GraphQLBatchResponse`
Co-authored-by: Kai Ren <tyranron@gmail.com>
- remove `cargo-make` integration
- rework CI pipeline more granular and precise
- rework releasing process
- tune up project layout
- fill up new CHANGELOGs
Additionally:
- fix latest nightly/stable Rust inconsistencies
