build(playwright): only add incomplete if 1 or more exist

Author: damienrobson-sage

playwright/support/helper.ts

@@ -87,10 +87,12 @@ export const checkAccessibility = async (
       );
     }
   } else {
-    await testInfo.attach("accessibility-incomplete.json", {
-      body: JSON.stringify(accessibilityScanResults.incomplete, null, 2),
-      contentType: "application/json",
-    });
+    if (accessibilityScanResults.incomplete.length > 0) {
+      await testInfo.attach("accessibility-incomplete.json", {
+        body: JSON.stringify(accessibilityScanResults.incomplete, null, 2),
+        contentType: "application/json",
+      });
+    }
 
     if (accessibilityScanResults.violations.length > 0) {
       await testInfo.attach("accessibility-violations.json", {