Disabled workflow

For this to work we have to move the smarty-extended package to an official
composer package

composer.json

@@ -22,5 +22,11 @@
     "require-dev": {
         "egrajp/smarty-extended": "^4.3",
         "gullevek/dotenv": "dev-master"
+    },
+    "repositories": {
+        "git.egplusww.jp.Composer": {
+            "type": "composer",
+            "url": "https://git.egplusww.jp/api/packages/Composer/composer"
+        }
     }
 }