Fix: Correct method invocation in forCli method

The forCli method in both ChannelListCommand and RouteListCommand classes had an issue with the method invocation. It was incorrectly called using $this instead of the proper static keyword. This commit corrects the invocation to use the static:: keyword.

src/Illuminate/Foundation/Console/ChannelListCommand.php

@@ -78,7 +78,7 @@ protected function forCli($channels)
             return mb_strlen($channelName);
         });
 
-        $terminalWidth = $this->getTerminalWidth();
+        $terminalWidth = static::getTerminalWidth();
 
         $channelCount = $this->determineChannelCountOutput($channels, $terminalWidth);
 

src/Illuminate/Foundation/Console/RouteListCommand.php

@@ -350,7 +350,7 @@ protected function forCli($routes)
 
         $maxMethod = mb_strlen($routes->max('method'));
 
-        $terminalWidth = $this->getTerminalWidth();
+        $terminalWidth = static::getTerminalWidth();
 
         $routeCount = $this->determineRouteCountOutput($routes, $terminalWidth);