minor #61192 [ObjectMapper] add missing legacy group (xabbuh)

This PR was merged into the 7.4 branch. Discussion ---------- [ObjectMapper] add missing legacy group | Q | A | ------------- | --- | Branch? | 7.4 | Bug fix? | no | New feature? | no | Deprecations? | no | Issues | | License | MIT Commits ------- f1940f9a9b add missing legacy group

Author: xabbuh

Tests/ObjectMapperTest.php

@@ -371,6 +371,9 @@ public static function objectMapperProvider(): iterable
  yield [new ObjectMapper(new ReflectionObjectMapperMetadataFactory(), PropertyAccess::createPropertyAccessor())];
  }
 
+ /**
+ * @group legacy
+ */
  public function testMapInitializesLazyObject()
  {
  $lazy = new LazyFoo();