chore: update deps

Author: develar

package.json

@@ -44,14 +44,14 @@
     "electron-debug": "^1.5.0",
     "electron-is-dev": "^0.3.0",
     "electron-log": "^2.2.14",
-    "electron-updater": "^2.20.1",
+    "electron-updater": "^2.21.0",
     "keytar-prebuild": "^4.1.1"
   },
   "devDependencies": {
     "@types/debug": "^0.0.30",
     "electron": "1.8.2",
-    "electron-builder": "^20.0.4",
+    "electron-builder": "^20.0.5",
     "rimraf": "^2.6.2",
-    "typescript": "^2.7.1"
+    "typescript": "^2.7.2"
   }
 }