Downgrade engine version requirements to suit katacoda

Author: gjsjohnmurray

package.json

@@ -40,7 +40,7 @@
     "lint-fix": "tslint --project tsconfig.json -t verbose --fix"
   },
   "dependencies": {
-    "@types/vscode": "^1.44.0",
+    "@types/vscode": "^1.43.0",
     "node-cmd": "^4.0.0"
   },
   "devDependencies": {