Added missing bubble property

src/Monolog/Handler/FingersCrossedHandler.php

@@ -43,6 +43,7 @@ class FingersCrossedHandler extends Handler implements ProcessableHandlerInterfa
     protected $buffer = [];
     protected $stopBuffering;
     protected $passthruLevel;
+    protected $bubble;
 
     /**
      * @param callable|HandlerInterface              $handler            Handler or factory callable($record, $fingersCrossedHandler).

src/Monolog/Handler/GroupHandler.php

@@ -24,6 +24,7 @@ class GroupHandler extends Handler implements ProcessableHandlerInterface, Reset
     use ProcessableHandlerTrait;
 
     protected $handlers;
+    protected $bubble;
 
     /**
      * @param HandlerInterface[] $handlers Array of Handlers.