🐛 fix: update moved labels package import (#2953)

Update the Boxcutter revision-state test after the labels package moved to internal/shared, restoring go mod tidy.

Signed-off-by: Todd Short <tshort@redhat.com>

Author: tmshort

internal/operator-controller/controllers/boxcutter_reconcile_steps_test.go

@@ -26,7 +26,7 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/client/fake"
 
 	ocv1 "github.com/operator-framework/operator-controller/api/v1"
-	"github.com/operator-framework/operator-controller/internal/operator-controller/labels"
+	"github.com/operator-framework/operator-controller/internal/shared/labels"
 )
 
 func TestBoxcutterRevisionStatesGetter_ClassifiesByCompletedAt(t *testing.T) {