Update uv_build to 0.9

Author: johnthagen

end_to_end_tests/metadata_snapshots/uv.pyproject.toml

@@ -16,7 +16,7 @@ module-name = "test_3_1_features_client"
 module-root = ""
 
 [build-system]
-requires = ["uv_build>=0.8.0,<0.9.0"]
+requires = ["uv_build>=0.9.0,<0.10.0"]
 build-backend = "uv_build"
 
 [tool.ruff]

openapi_python_client/templates/pyproject_uv.toml.jinja

@@ -16,5 +16,5 @@ module-name = "{{ package_name }}"
 module-root = ""
 
 [build-system]
-requires = ["uv_build>=0.8.0,<0.9.0"]
+requires = ["uv_build>=0.9.0,<0.10.0"]
 build-backend = "uv_build"