update vscode engine

package-lock.json

@@ -2858,7 +2858,7 @@
     "tunnel": {
       "version": "0.0.5",
       "resolved": "https://registry.npmjs.org/tunnel/-/tunnel-0.0.5.tgz",
-      "integrity": "sha1-0VMiVHSe02Yg/NEBCGVJWh+p0K4="
+      "integrity": "sha512-gj5sdqherx4VZKMcBA4vewER7zdK25Td+z1npBqpbDys4eJrLx+SlYjJvq1bDXs2irkuJM5pf8ktaEQVipkrbA=="
     },
     "tunnel-agent": {
       "version": "0.6.0",

package.json

@@ -605,7 +605,7 @@
     }
   },
   "engines": {
-    "vscode": "^1.20.0"
+    "vscode": "^1.23.0"
   },
   "scripts": {
     "vscode:prepublish": "tsc -p ./",