minor symfony#25443 [TwigBridge] Add missing dev requirement for workflow (chalasr)

This PR was merged into the 3.3 branch.

Discussion
----------

[TwigBridge] Add missing dev requirement for workflow

| Q             | A
| ------------- | ---
| Branch?       | 3.3
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

Commits
-------

63208ad [TwigBridge] Add missing dev requirement for workflow

Author: fabpot

src/Symfony/Bridge/Twig/Tests/Extension/WorkflowExtensionTest.php

@@ -25,10 +25,6 @@ class WorkflowExtensionTest extends TestCase
 
     protected function setUp()
     {
-        if (!class_exists(Workflow::class)) {
-            $this->markTestSkipped('The Workflow component is needed to run tests for this extension.');
-        }
-
         $places = array('ordered', 'waiting_for_payment', 'processed');
         $transitions = array(
             new Transition('t1', 'ordered', 'waiting_for_payment'),

src/Symfony/Bridge/Twig/composer.json

@@ -20,7 +20,6 @@
         "twig/twig": "~1.34|~2.4"
     },
     "require-dev": {
-        "fig/link-util": "^1.0",
         "symfony/asset": "~2.8|~3.0",
         "symfony/finder": "~2.8|~3.0",
         "symfony/form": "^3.2.10|^3.3.3",
@@ -37,7 +36,8 @@
         "symfony/console": "~2.8|~3.0",
         "symfony/var-dumper": "~2.8.10|~3.1.4|~3.2",
         "symfony/expression-language": "~2.8|~3.0",
-        "symfony/web-link": "~3.3"
+        "symfony/web-link": "~3.3",
+        "symfony/workflow": "~3.3"
     },
     "conflict": {
         "symfony/form": "<3.2.10|~3.3,<3.3.3"