Update composer dependencies

vendor/symfony/polyfill-php73/Php73.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace Symfony\Polyfill\Php73;
+
+/**
+ * @author Gabriel Caruso <carusogabriel34@gmail.com>
+ * @author Ion Bazan <ion.bazan@gmail.com>
+ *
+ * @internal
+ */
+final class Php73
+{
+    public static $startAt = 1533462603;
+
+    /**
+     * @param bool $asNum
+     *
+     * @return array|float|int
+     */
+    public static function hrtime($asNum = false)
+    {
+        $ns = \microtime(false);
+        $s = \substr($ns, 11) - self::$startAt;
+        $ns = 1E9 * (float) $ns;
+
+        if ($asNum) {
+            $ns += $s * 1E9;
+
+            return \PHP_INT_SIZE === 4 ? $ns : (int) $ns;
+        }
+
+        return array($s, (int) $ns);
+    }
+}