update dockerfiles based on latest streamline image

The latest images incorporate all changes previously added by the dockerfiles.
The arm image however is still missing/unreliable from the registry and must be
built independently.

docker/streamline-src/vendor/league/config/src/ReadOnlyConfiguration.php

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the league/config package.
+ *
+ * (c) Colin O'Dell <colinodell@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace League\Config;
+
+/**
+ * Provides read-only access to a given Configuration object
+ */
+final class ReadOnlyConfiguration implements ConfigurationInterface
+{
+    private Configuration $config;
+
+    public function __construct(Configuration $config)
+    {
+        $this->config = $config;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function get(string $key)
+    {
+        return $this->config->get($key);
+    }
+
+    public function exists(string $key): bool
+    {
+        return $this->config->exists($key);
+    }
+}