chore: release v0.12.3 (#142)

## 🤖 New release
* `portgraph`: 0.12.2 -> 0.12.3 (✓ API compatible changes)

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

<blockquote>

## [0.12.3](v0.12.2...v0.12.3)
- 2024-11-13

### New Features

- Fastpath for `is_node_convex` on a single node
([#153](#153))
</blockquote>


</p></details>

---
This PR was generated with
[release-plz](https://github.com/MarcoIeni/release-plz/).

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## [0.12.3](https://github.com/CQCL/portgraph/compare/v0.12.2...v0.12.3) - 2024-11-13
+
+### New Features
+
+- Fastpath for `is_node_convex` on a single node ([#153](https://github.com/CQCL/portgraph/pull/153))
+
 ## [0.12.2](https://github.com/CQCL/portgraph/compare/v0.12.1...v0.12.2) - 2024-07-05
 
 ### Bug Fixes

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "portgraph"
-version = "0.12.2"
+version = "0.12.3"
 license = "Apache-2.0"
 
 readme = "README.md"