composer update

vendor/symfony/console/Input/StringInput.php

@@ -40,13 +40,9 @@ class StringInput extends ArgvInput
     /**
      * Tokenizes a string.
      *
-     * @param string $input The input to tokenize
-     *
-     * @return array An array of tokens
-     *
      * @throws InvalidArgumentException When unable to parse input (should never happen)
      */
-    private function tokenize($input)
+    private function tokenize(string $input): array
     {
         $tokens = [];
         $length = \strlen($input);