vscode: change to ms-python.black-formatter

Microsoft is breaking out various Python tools into separate extensions.

.vscode/extensions.json

@@ -4,7 +4,8 @@
 
 	// List of extensions which should be recommended for users of this workspace.
 	"recommendations": [
-		"ms-python.python"
+		"ms-python.python",
+		"ms-python.black-formatter"
 	],
 	// List of extensions recommended by VS Code that should not be recommended for users of this workspace.
 	"unwantedRecommendations": [

.vscode/settings.json

@@ -4,14 +4,14 @@
     },
     "python.defaultInterpreterPath": ".venv/bin/python",
     "python.autoComplete.extraPaths": ["jedi/src"],
-    "python.formatting.provider": "black",
+    "python.formatting.provider": "none",
     "python.linting.pylintEnabled": false,
     "python.linting.flake8Enabled": true,
     "python.linting.pycodestyleEnabled": false,
     "python.linting.enabled": true,
     "[python]": {
         "editor.formatOnSave": true,
-        "editor.defaultFormatter": "ms-python.python"
+        "editor.defaultFormatter": "ms-python.black-formatter"
     },
     "python.languageServer": "Pylance",
     "python.testing.pytestArgs": [