feature #51220 [Workflow] Add a TraceableWorkflow (lyrixx)

This PR was merged into the 6.4 branch.

Discussion
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[Workflow] Add a `TraceableWorkflow`

| Q             | A
| ------------- | ---
| Branch?       | 6.4
| Bug fix?      | no
| New feature?  | yes
| Deprecations? | no
| Tickets       |
| License       | MIT
| Doc PR        |

![image](https://github.com/symfony/symfony/assets/408368/fd6baf45-7b70-452d-beac-d673a8eeef8c)

![image](https://github.com/symfony/symfony/assets/408368/c58d8e00-abf2-4967-a22a-71bde33e3fe2)

---

Initially, I wanted to display the current marking on the graph, but it's not possible. "current" does not mean anything. What if I use the workflow for 2 entities? What if I call twice `apply()`. Which marking should I choose? => this is not possible.

But, DoctrineBundle use ajax, like for explaining SQL request. It would be nice to be able to click on a marking, and it'll re-render the graph with this marking. WDYT?

Commits
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963cc7a40da [Worflow] Add a TraceableWorkflow

Author: fabpot

FrameworkBundle.php

@@ -70,6 +70,7 @@
 use Symfony\Component\Validator\DependencyInjection\AddValidatorInitializersPass;
 use Symfony\Component\VarExporter\Internal\Hydrator;
 use Symfony\Component\VarExporter\Internal\Registry;
+use Symfony\Component\Workflow\DependencyInjection\WorkflowDebugPass;
 use Symfony\Component\Workflow\DependencyInjection\WorkflowGuardListenerPass;
 
 // Help opcache.preload discover always-needed symbols
@@ -189,6 +190,7 @@ public function build(ContainerBuilder $container)
             $container->addCompilerPass(new UnusedTagsPass(), PassConfig::TYPE_AFTER_REMOVING);
             $container->addCompilerPass(new ContainerBuilderDebugDumpPass(), PassConfig::TYPE_BEFORE_REMOVING, -255);
             $container->addCompilerPass(new CacheCollectorPass(), PassConfig::TYPE_BEFORE_REMOVING);
+            $this->addCompilerPassIfExists($container, WorkflowDebugPass::class);
         }
     }