Fix withoutPretending method to correctly reset state after exception (#52794)

Co-authored-by: Xurshudyan <v.khurshudyan@aico.swiss>

Author: xurshudyan

src/Illuminate/Database/Connection.php

@@ -672,11 +672,11 @@ public function withoutPretending(Closure $callback)
 
         $this->pretending = false;
 
-        $result = $callback();
-
-        $this->pretending = true;
-
-        return $result;
+        try {
+            return $callback();
+        } finally {
+            $this->pretending = true;
+        }
     }
 
     /**