Upgrade WP CLI

Author: xyu

composer.json

@@ -25,8 +25,8 @@
         "wpackagist-plugin/jetpack": "*",
         "wpackagist-plugin/sendgrid-email-delivery-simplified": "~1",
 
-        "predis/predis": "~1.0",
-        "wp-cli/wp-cli": "^1.0"
+        "predis/predis": "~1",
+        "wp-cli/wp-cli": "^2"
     },
     "suggest": {
         "wpackagist-plugin/cloudflare-cache-purge": "Purges cached pages on CF.",