Remove workaround and update badge.

Closes jaraco/skeleton#155

Author: jaraco

README.rst

@@ -7,7 +7,7 @@
    :target: https://github.com/PROJECT_PATH/actions?query=workflow%3A%22tests%22
    :alt: tests
 
-.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json
+.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json
     :target: https://github.com/astral-sh/ruff
     :alt: Ruff
 

ruff.toml

@@ -1,6 +1,3 @@
-# extend pyproject.toml for requires-python (workaround astral-sh/ruff#10299)
-extend = "pyproject.toml"
-
 [lint]
 extend-select = [
 	# upstream