minor #52139 [FrameworkBundle] Fix workflow tests (alexandre-daubois)

This PR was merged into the 7.0 branch.

Discussion
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[FrameworkBundle] Fix workflow tests

| Q             | A
| ------------- | ---
| Branch?       | 7.0
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT

Commits
-------

78cc7ecc45 [FrameworkBundle] Fix workflow tests

Author: xabbuh

Tests/DependencyInjection/FrameworkExtensionTestCase.php

@@ -505,7 +505,7 @@ public function testWorkflowServicesCanBeEnabled()
     {
         $container = $this->createContainerFromFile('workflows_enabled');
 
-        $this->assertTrue($container->hasDefinition('.workflow.registry'));
+        $this->assertTrue($container->hasDefinition('workflow.registry'));
         $this->assertTrue($container->hasDefinition('console.command.workflow_dump'));
     }