bug #52188 [FrameworkBundle][Workflow] Add WorflowGuardListenerPass only if it exists (smnandre)

This PR was merged into the 6.4 branch.

Discussion
----------

[FrameworkBundle][Workflow] Add `WorflowGuardListenerPass` only if it exists

| Q             | A
| ------------- | ---
| Branch?       | 6.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Fix #52187
| License       | MIT

As spotted by `@PhilETaylor` (in [this comment](symfony/symfony#52032 (comment))) the framework is broken in 6.4-dev when the worflow component is not installed.

This PR fixes that by registering the compiler pass only if available.

Commits
-------

1ba348a7e13 Add WorflowGuardListenerPass only if it exists

Author: fabpot

FrameworkBundle.php

@@ -168,7 +168,7 @@ public function build(ContainerBuilder $container)
         $container->addCompilerPass(new CachePoolClearerPass(), PassConfig::TYPE_AFTER_REMOVING);
         $container->addCompilerPass(new CachePoolPrunerPass(), PassConfig::TYPE_AFTER_REMOVING);
         $this->addCompilerPassIfExists($container, FormPass::class);
-        $container->addCompilerPass(new WorkflowGuardListenerPass());
+        $this->addCompilerPassIfExists($container, WorkflowGuardListenerPass::class);
         $container->addCompilerPass(new ResettableServicePass(), PassConfig::TYPE_BEFORE_OPTIMIZATION, -32);
         $container->addCompilerPass(new RegisterLocaleAwareServicesPass());
         $container->addCompilerPass(new TestServiceContainerWeakRefPass(), PassConfig::TYPE_BEFORE_REMOVING, -32);