🌱 Align ClusterObjectSet e2e cleanup with addedResources pattern (#2799)

Track ClusterObjectSets in addedResources when applied, matching
the pattern established for ClusterExtensions in #2783. This removes
the special-case cleanup block in ScenarioCleanup and ensures multiple
ClusterObjectSets per scenario are all cleaned up correctly.

Co-authored-by: Per G. da Silva <pegoncal@redhat.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: 3 people

test/e2e/steps/hooks.go

@@ -275,9 +275,6 @@ func ScenarioCleanup(ctx context.Context, _ *godog.Scenario, err error) (context
 	}
 
 	forDeletion := sc.addedResources
-	if sc.clusterObjectSetName != "" && featureGates[features.BoxcutterRuntime] {
-		forDeletion = append(forDeletion, resource{name: sc.clusterObjectSetName, kind: "clusterobjectset"})
-	}
 	for _, catalogName := range sc.catalogs {
 		forDeletion = append(forDeletion, resource{name: catalogName, kind: "clustercatalog"})
 	}

test/e2e/steps/steps.go

@@ -523,7 +523,8 @@ func ResourceIsApplied(ctx context.Context, yamlTemplate *godog.DocString) error
 	if res.GetKind() == "ClusterExtension" {
 		sc.addedResources = append(sc.addedResources, resource{name: res.GetName(), kind: "clusterextension"})
 	} else if res.GetKind() == "ClusterObjectSet" {
-		sc.clusterObjectSetName = res.GetName()
+		sc.clusterObjectSetName = res.GetName() // used for ${COS_NAME} variable substitution in YAML templates
+		sc.addedResources = append(sc.addedResources, resource{name: res.GetName(), kind: "clusterobjectset"})
 	} else {
 		namespace := res.GetNamespace()
 		if namespace == "" {