Make vscode extension package private (#8383)

Eventually, we'll publish this to the VS Code extension marketplace, but we don't want to publish this to npm.

Author: lettertwo

packages/utils/parcelforvscode/package.json

@@ -4,6 +4,7 @@
   "parcel-lsp.trace.server": "verbose",
   "description": "",
   "version": "2.7.0",
+  "private": true,
   "engines": {
     "vscode": "^1.46.0"
   },