Update package.json to bump PRQL version to 0.10.0 (#350)

Will this kick off the publish process?

Author: richb-hanover

package.json

@@ -6,7 +6,7 @@
     "url": "https://github.com/prql/prql-vscode.git"
   },
   "publisher": "prql-lang",
-  "version": "0.9.5",
+  "version": "0.10.0",
   "icon": "resources/prql-logo.png",
   "engines": {
     "vscode": "^1.65.0"