upgrade to laravel 7 and set branch to v2

vendor/symfony/http-kernel/Log/DebugLoggerInterface.php

@@ -27,20 +27,16 @@ interface DebugLoggerInterface
      * timestamp, message, priority, and priorityName.
      * It can also have an optional context key containing an array.
      *
-     * @param Request|null $request The request to get logs for
-     *
      * @return array An array of logs
      */
-    public function getLogs(/* Request $request = null */);
+    public function getLogs(Request $request = null);
 
     /**
      * Returns the number of errors.
      *
-     * @param Request|null $request The request to count logs for
-     *
      * @return int The number of errors
      */
-    public function countErrors(/* Request $request = null */);
+    public function countErrors(Request $request = null);
 
     /**
      * Removes all log records.