Bump version to 0.3.8 (#30)

This version includes the following functionality:

* Updated CI actions and auto-format (#29)
* Implement proxy-based patch generation (adds `produce` method, inspired by Immer) (#28)

Author: berendkleinhaneveld

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "patchdiff"
-version = "0.3.7"
+version = "0.3.8"
 description = "MIT"
 authors = [
     { name = "Korijn van Golen", email = "korijn@gmail.com" },