fix composer.json

composer.json

@@ -40,6 +40,12 @@
         "kartik-v/yii2-widget-datepicker": "@dev",
         "ext-zip" : "*"
     },
+    "repositories": [
+        {
+            "type": "composer",
+            "url": "https://asset-packagist.org"
+        }
+    ],
     "require-dev": {
         "codeception/codeception" :"*",
         "yiisoft/yii2-faker": "*"
@@ -51,6 +57,9 @@
                 "npm-asset-library": "vendor/npm",
                 "bower-asset-library": "vendor/bower"
             }
+        },
+        "allow-plugins": {
+            "yiisoft/yii2-composer": true
         }
     },
     "scripts": {