fix(deps): update dependency commander to ^2.20.3

Author: renovate[bot]

package.json

@@ -20,7 +20,7 @@
   ],
   "dependencies": {
     "apollo-boost": "^0.4.3",
-    "commander": "^2.20.0",
+    "commander": "^2.20.3",
     "graphql": "^14.4.2",
     "graphql-tag": "^2.10.1",
     "micromatch": "^4.0.2",