Marks handler service as private.

Author: phpeek

src/Resources/config/services.xml

@@ -22,7 +22,7 @@
             </call>
         </service>
 
-        <service id="Sentry\Monolog\Handler" class="Sentry\Monolog\Handler">
+        <service id="Sentry\Monolog\Handler" class="Sentry\Monolog\Handler" public="false">
             <argument type="service" id="Sentry\State\HubInterface" />
         </service>