chore: release v0.2.0 (#18)

## 🤖 New release
* `tket-json-rs`: 0.1.1 -> 0.2.0 (⚠️ API breaking changes)

### ⚠️ `tket-json-rs` breaking changes

```
--- failure enum_struct_variant_field_added: pub enum struct variant field added ---

Description:
An enum's exhaustive struct variant has a new field, which has to be included when constructing or matching on this variant.
        ref: https://doc.rust-lang.org/reference/attributes/type_system.html#the-non_exhaustive-attribute
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.24.0/src/lints/enum_struct_variant_field_added.ron

Failed in:
  field cx_config of variant OpBox::PauliExpBox in /tmp/.tmpycvRG8/tket-json-rs/src/circuit_json.rs:109
  field control_state of variant OpBox::QControlBox in /tmp/.tmpycvRG8/tket-json-rs/src/circuit_json.rs:166
```

<details><summary><i><b>Changelog</b></i></summary><p>

<blockquote>

## 0.2.0 (2023-10-16)

### Features

- Expand box types and match order
([#15](#15))
</blockquote>


</p></details>

---
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CHANGELOG.md

@@ -1,5 +1,11 @@
 # Release notes
 
+## 0.2.0 (2023-10-16)
+
+### Features
+
+- Expand box types and match order ([#15](https://github.com/CQCL/tket-json-rs/pull/15))
+
 ## 0.1.1 (2023-09-19)
 
 ### Features

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tket-json-rs"
-version = "0.1.1"
+version = "0.2.0"
 license = "Apache-2.0"
 edition = "2021"
 rust-version = "1.70"