SelectCategory type error (#231)

* fix: SelectCategory type error

* feat: string cast for trim() only

Author: jremmurd

src/FilterService/FilterType/ElasticSearch/SelectCategory.php

@@ -76,7 +76,7 @@ public function addCondition(AbstractFilterDefinitionType $filterDefinition, Pro
         $currentFilter[$filterDefinition->getField()] = $value;
 
         if (!empty($value)) {
-            $value = trim($value);
+            $value = trim((string)$value);
             $productList->addCondition($value, $filterDefinition->getField());
         }
 

src/FilterService/FilterType/SearchIndex/SelectCategory.php

@@ -73,7 +73,7 @@ public function addCondition(AbstractFilterDefinitionType $filterDefinition, Pro
         $currentFilter[$filterDefinition->getField()] = $value;
 
         if (!empty($value)) {
-            $value = trim($value);
+            $value = trim((string)$value);
             $productList->addCondition($value, $filterDefinition->getField());
         }