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/symfony/process/ProcessUtils.php

@@ -1,64 +0,0 @@
-<?php
-
-/*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Symfony\Component\Process;
-
-use Symfony\Component\Process\Exception\InvalidArgumentException;
-
-/**
- * ProcessUtils is a bunch of utility methods.
- *
- * This class contains static methods only and is not meant to be instantiated.
- *
- * @author Martin Hasoň <martin.hason@gmail.com>
- */
-class ProcessUtils
-{
-    /**
-     * This class should not be instantiated.
-     */
-    private function __construct()
-    {
-    }
-
-    /**
-     * Validates and normalizes a Process input.
-     *
-     * @param string $caller The name of method call that validates the input
-     * @param mixed  $input  The input to validate
-     *
-     * @throws InvalidArgumentException In case the input is not valid
-     */
-    public static function validateInput(string $caller, mixed $input): mixed
-    {
-        if (null !== $input) {
-            if (\is_resource($input)) {
-                return $input;
-            }
-            if (\is_scalar($input)) {
-                return (string) $input;
-            }
-            if ($input instanceof Process) {
-                return $input->getIterator($input::ITER_SKIP_ERR);
-            }
-            if ($input instanceof \Iterator) {
-                return $input;
-            }
-            if ($input instanceof \Traversable) {
-                return new \IteratorIterator($input);
-            }
-
-            throw new InvalidArgumentException(sprintf('"%s" only accepts strings, Traversable objects or stream resources.', $caller));
-        }
-
-        return $input;
-    }
-}