Allows env vars for security query sections

Author: Jeremiah VALERIE

DependencyInjection/Configuration.php

@@ -199,6 +199,14 @@ private function addSecurityQuerySection($name, $disabledValue)
     {
         $builder = new TreeBuilder();
         $node = $builder->root($name, 'integer');
+        $node->beforeNormalization()
+                ->ifTrue(function ($v) {
+                    return is_string($v) && is_numeric($v);
+                })
+                ->then(function ($v) {
+                    return intval($v);
+                })
+            ->end();
 
         $node
             ->info('Disabled if equal to false.')

Tests/Functional/app/config/queryComplexity/config.yml

@@ -7,7 +7,7 @@ parameters:
 
 overblog_graphql:
     security:
-        query_max_complexity: 10
+        query_max_complexity: '10'
     definitions:
         schema:
             query: Query