Update dependency commander to v4

Author: renovate-bot

package.json

@@ -22,7 +22,7 @@
   },
   "dependencies": {
     "chalk": "^2.4.1",
-    "commander": "^3.0.0",
+    "commander": "^4.0.0",
     "common-tags": "^1.4.0",
     "detect-indent": "^6.0.0",
     "dottie": "^2.0.0",

yarn.lock

@@ -1268,10 +1268,10 @@ commander@^2.9.0:
   dependencies:
     graceful-readlink ">= 1.0.0"
 
-commander@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-3.0.0.tgz#0641ea00838c7a964627f04cddc336a2deddd60a"
-  integrity sha512-pl3QrGOBa9RZaslQiqnnKX2J068wcQw7j9AIaBQ9/JEp5RY6je4jKTImg0Bd+rpoONSe7GUFSgkxLeo17m3Pow==
+commander@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-4.0.0.tgz#e782b6afe6a0f1b1408be59429919e1305160e3f"
+  integrity sha512-SEa2abMBTZuEjLVYpNrAFoRgxPwG4rXP3+SGY6CM/HZGeDzIA7Pzp+7H3AHDukKEpyy2SoSGGPShKqqfH9T9AQ==
 
 commander@~2.17.1:
   version "2.17.1"