Change typescript version because of build failure

Author: onixie

package.json

@@ -106,14 +106,14 @@
     "@types/mocha": "^2.2.32",
     "@types/node": "^10.12.0",
     "mocha": "^2.3.3",
-    "typescript": "^3.1.0",
+    "typescript": "^2.9.2",
     "vscode": "^1.0.0"
   },
   "dependencies": {
     "@types/glob": "^5.0.30",
     "glob": "^7.1.1",
     "js-beautify": "^1.6.12",
-    "typescript": "^2.2.1",
+    "typescript": "^2.9.2",
     "vscode-languageclient": "^3.2.0",
     "vscode-languageserver": "^3.2.0",
     "vscode-uri": "^1.0.0"