Remove trailing comma on ContextListener::__construct to be compatible with PHP 7.4

Author: stefandoorn

src/EventListener/ContextListener.php

@@ -25,7 +25,7 @@ public function __construct(
         GoogleTagManagerInterface $googleTagManager,
         ChannelContextInterface $channelContext,
         LocaleContextInterface $localeContext,
-        CurrencyContextInterface $currencyContext,
+        CurrencyContextInterface $currencyContext
     ) {
         $this->googleTagManager = $googleTagManager;
         $this->channelContext = $channelContext;