MC-42545: Some of the sub categories are not shown on layered navigation due to the bucket size limit

- Rename children_category_ids to category_ids_to_aggregate

Author: bubasuma

app/code/Magento/CatalogGraphQl/etc/search_request.xml

@@ -55,7 +55,7 @@
                     <metric type="count"/>
                 </metrics>
                 <parameters>
-                    <parameter name="include" value="$children_category_ids$"/>
+                    <parameter name="include" value="$category_ids_to_aggregate$"/>
                 </parameters>
             </bucket>
         </aggregations>

app/code/Magento/CatalogSearch/Model/Layer/Filter/Category.php

@@ -86,7 +86,7 @@ public function apply(\Magento\Framework\App\RequestInterface $request)
             if ($childrenCategoryIds) {
                 $this->getLayer()->getProductCollection()
                     ->addFieldToFilter(
-                        'children_category_ids',
+                        'category_ids_to_aggregate',
                         $childrenCategoryIds
                     );
             }

app/code/Magento/CatalogSearch/etc/search_request.xml

@@ -53,7 +53,7 @@
                     <metric type="count"/>
                 </metrics>
                 <parameters>
-                    <parameter name="include" value="$children_category_ids$"/>
+                    <parameter name="include" value="$category_ids_to_aggregate$"/>
                 </parameters>
             </bucket>
         </aggregations>
@@ -129,7 +129,7 @@
                     <metric type="count"/>
                 </metrics>
                 <parameters>
-                    <parameter name="include" value="$children_category_ids$"/>
+                    <parameter name="include" value="$category_ids_to_aggregate$"/>
                 </parameters>
             </bucket>
         </aggregations>