chore: upgrade example

Author: gregberge

example/package.json

@@ -6,7 +6,7 @@
   "devDependencies": {
     "html-webpack-plugin": "^3.2.0",
     "webpack": "^4.29.6",
-    "webpack-cli": "^3.2.3",
+    "webpack-cli": "^3.3.0",
     "webpack-dev-server": "^3.2.1"
   }
 }

example/yarn.lock

@@ -3883,10 +3883,10 @@ wbuf@^1.1.0, wbuf@^1.7.3:
   dependencies:
     minimalistic-assert "^1.0.0"
 
-webpack-cli@^3.2.3:
-  version "3.2.3"
-  resolved "https://registry.yarnpkg.com/webpack-cli/-/webpack-cli-3.2.3.tgz#13653549adfd8ccd920ad7be1ef868bacc22e346"
-  integrity sha512-Ik3SjV6uJtWIAN5jp5ZuBMWEAaP5E4V78XJ2nI+paFPh8v4HPSwo/myN0r29Xc/6ZKnd2IdrAlpSgNOu2CDQ6Q==
+webpack-cli@^3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/webpack-cli/-/webpack-cli-3.3.0.tgz#55c8a74cae1e88117f9dda3a801c7272e93ca318"
+  integrity sha512-t1M7G4z5FhHKJ92WRKwZ1rtvi7rHc0NZoZRbSkol0YKl4HvcC8+DsmGDmK7MmZxHSAetHagiOsjOB6MmzC2TUw==
   dependencies:
     chalk "^2.4.1"
     cross-spawn "^6.0.5"
@@ -3898,7 +3898,7 @@ webpack-cli@^3.2.3:
     loader-utils "^1.1.0"
     supports-color "^5.5.0"
     v8-compile-cache "^2.0.2"
-    yargs "^12.0.4"
+    yargs "^12.0.5"
 
 webpack-dev-middleware@^3.5.1:
   version "3.6.1"
@@ -4097,7 +4097,7 @@ [email protected]:
     y18n "^3.2.1 || ^4.0.0"
     yargs-parser "^10.1.0"
 
-yargs@^12.0.4:
+yargs@^12.0.5:
   version "12.0.5"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.5.tgz#05f5997b609647b64f66b81e3b4b10a368e7ad13"
   integrity sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==