Prevent null from being used as an array key.

Since PHP 8.5 using null as array key is deprecated.
If used as an array key is converted to an empty string,
which is most likely not a valid key in the properties array.

Author: BastianLedererIcinga

src/Behavior/Binary.php

@@ -79,7 +79,7 @@ public function rewriteCondition(Condition $condition, $relation = null)
          * {@see \ipl\Orm\Compat\FilterProcessor::requireAndResolveFilterColumns()}
          */
         $column = $condition->metaData()->get('columnName');
-        if (isset($this->properties[$column])) {
+        if ($column !== null && isset($this->properties[$column])) {
             $value = $condition->metaData()->get('originalValue');
 
             if ($this->isPostgres && is_resource($value)) {