vscode: update extensions

This uses new extensions for running linting and formatting tools.

Author: dlech

.vscode/extensions.json

@@ -4,8 +4,12 @@
 
 	// List of extensions which should be recommended for users of this workspace.
 	"recommendations": [
+		"github.vscode-github-actions",
 		"ms-python.python",
-		"ms-python.vscode-pylance"
+		"ms-python.vscode-pylance",
+		"ms-python.black-formatter",
+		"ms-python.isort",
+		"ms-python.flake8"
 	],
 	// List of extensions recommended by VS Code that should not be recommended for users of this workspace.
 	"unwantedRecommendations": [

.vscode/settings.json

@@ -1,15 +1,18 @@
 {
     "restructuredtext.confPath": "",
     "python.defaultInterpreterPath": ".venv/bin/python",
-    "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",
+        "editor.codeActionsOnSave": {
+            "source.organizeImports": true
+        },
     },
     "python.testing.pytestArgs": [
         "tests"