build: bump version to 0.5.0

This version marks support of Pydantic V2 and python 3.12, and drops support for Pydantic V1

Author: abhinand-c

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "graphene_pydantic"
-version = "0.4.2"
+version = "0.5.0"
 description = "Graphene Pydantic integration"
 readme = "README.md"
 repository = "https://github.com/graphql-python/graphene-pydantic"