chore: remove black formatter extension from vscode

- Remove 'ms-python.black-formatter' from recommended extensions

This change updates the development environment setup by removing the Black formatter extension, which is no longer needed or has been replaced by another tool.

.vscode/extensions.json

@@ -2,7 +2,6 @@
   "recommendations": [
     "ms-python.python",
     "ms-python.vscode-pylance",
-    "ms-python.black-formatter",
     "charliermarsh.ruff"
   ]
 }