build: add commitizen config to pyproject

Author: spwoodcock

pyproject.toml

@@ -35,3 +35,13 @@ testpaths = [
 ]
 asyncio_mode="auto"
 asyncio_default_fixture_loop_scope="session"
+
+[tool.commitizen]
+name = "cz_conventional_commits"
+version = "0.1.0"
+version_files = [
+    "pyproject.toml:version",
+    "osm_data_client/__version__.py",
+]
+changelog_file = "CHANGELOG.md"
+update_changelog_on_bump = true