Revert "Remove magento/module-grouped-product dependency"

This reverts commit 282c5ea.

Author: engcom-Echo

app/code/Magento/Catalog/composer.json

@@ -31,7 +31,8 @@
         "magento/module-ui": "*",
         "magento/module-url-rewrite": "*",
         "magento/module-widget": "*",
-        "magento/module-wishlist": "*"
+        "magento/module-wishlist": "*",
+        "magento/module-grouped-product": "*"
     },
     "suggest": {
         "magento/module-cookie": "*",