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/guzzlehttp/promises/src/RejectedPromise.php

@@ -1,95 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace GuzzleHttp\Promise;
-
-/**
- * A promise that has been rejected.
- *
- * Thenning off of this promise will invoke the onRejected callback
- * immediately and ignore other callbacks.
- *
- * @final
- */
-class RejectedPromise implements PromiseInterface
-{
-    private $reason;
-
-    /**
-     * @param mixed $reason
-     */
-    public function __construct($reason)
-    {
-        if (is_object($reason) && method_exists($reason, 'then')) {
-            throw new \InvalidArgumentException(
-                'You cannot create a RejectedPromise with a promise.'
-            );
-        }
-
-        $this->reason = $reason;
-    }
-
-    public function then(
-        callable $onFulfilled = null,
-        callable $onRejected = null
-    ): PromiseInterface {
-        // If there's no onRejected callback then just return self.
-        if (!$onRejected) {
-            return $this;
-        }
-
-        $queue = Utils::queue();
-        $reason = $this->reason;
-        $p = new Promise([$queue, 'run']);
-        $queue->add(static function () use ($p, $reason, $onRejected): void {
-            if (Is::pending($p)) {
-                try {
-                    // Return a resolved promise if onRejected does not throw.
-                    $p->resolve($onRejected($reason));
-                } catch (\Throwable $e) {
-                    // onRejected threw, so return a rejected promise.
-                    $p->reject($e);
-                }
-            }
-        });
-
-        return $p;
-    }
-
-    public function otherwise(callable $onRejected): PromiseInterface
-    {
-        return $this->then(null, $onRejected);
-    }
-
-    public function wait(bool $unwrap = true)
-    {
-        if ($unwrap) {
-            throw Create::exceptionFor($this->reason);
-        }
-
-        return null;
-    }
-
-    public function getState(): string
-    {
-        return self::REJECTED;
-    }
-
-    public function resolve($value): void
-    {
-        throw new \LogicException('Cannot resolve a rejected promise');
-    }
-
-    public function reject($reason): void
-    {
-        if ($reason !== $this->reason) {
-            throw new \LogicException('Cannot reject a rejected promise');
-        }
-    }
-
-    public function cancel(): void
-    {
-        // pass
-    }
-}