Import latest app updates from streamline

An updated set of source files and initialization was provided by streamline to
address issues observed during initial testing. These files have been updated in
order to generate a new set of app images.

docker/streamline-src/vendor/sebastian/object-enumerator/src/Enumerator.php

@@ -1,68 +0,0 @@
-<?php declare(strict_types=1);
-/*
- * This file is part of sebastian/object-enumerator.
- *
- * (c) Sebastian Bergmann <sebastian@phpunit.de>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-namespace SebastianBergmann\ObjectEnumerator;
-
-use function array_merge;
-use function is_array;
-use function is_object;
-use SebastianBergmann\ObjectReflector\ObjectReflector;
-use SebastianBergmann\RecursionContext\Context;
-
-final class Enumerator
-{
-    /**
-     * @psalm-return list<object>
-     */
-    public function enumerate(array|object $variable, Context $processed = new Context): array
-    {
-        $objects = [];
-
-        if ($processed->contains($variable)) {
-            return $objects;
-        }
-
-        $array = $variable;
-
-        /* @noinspection UnusedFunctionResultInspection */
-        $processed->add($variable);
-
-        if (is_array($variable)) {
-            foreach ($array as $element) {
-                if (!is_array($element) && !is_object($element)) {
-                    continue;
-                }
-
-                /** @noinspection SlowArrayOperationsInLoopInspection */
-                $objects = array_merge(
-                    $objects,
-                    $this->enumerate($element, $processed)
-                );
-            }
-
-            return $objects;
-        }
-
-        $objects[] = $variable;
-
-        foreach ((new ObjectReflector)->getProperties($variable) as $value) {
-            if (!is_array($value) && !is_object($value)) {
-                continue;
-            }
-
-            /** @noinspection SlowArrayOperationsInLoopInspection */
-            $objects = array_merge(
-                $objects,
-                $this->enumerate($value, $processed)
-            );
-        }
-
-        return $objects;
-    }
-}