[export][person] Feature: add filter and aggregator by geographical unit on person

src/Bundle/ChillMainBundle/Entity/GeographicalUnit.php

@@ -53,6 +53,13 @@ class GeographicalUnit
         return $this->id;
     }
 
+    protected function setId(int $id): self
+    {
+        $this->id = $id;
+
+        return $this;
+    }
+
     public function getUnitName(): ?string
     {
         return $this->unitName;