Merge pull request #231 from wp-cli/update/wp-cli-2-12

Author: swissspidy

composer.json

@@ -18,7 +18,7 @@
         "wp-cli/config-command": "^1 || ^2",
         "wp-cli/core-command": "^1 || ^2",
         "wp-cli/eval-command": "^1 || ^2",
-        "wp-cli/wp-cli": "^2.5.1",
+        "wp-cli/wp-cli": "^2.12",
         "wp-coding-standards/wpcs": "^3",
         "yoast/phpunit-polyfills": "^1.0.3 || ^2.0.1"
     },