Bug 1798115 - Mark no-report-on-subdomain-success.https.html as intermittent on mac. a=test-only CLOSED TREE

Differential Revision: https://phabricator.services.mozilla.com/D163422

testing/web-platform/meta/network-error-logging/no-report-on-subdomain-success.https.html.ini

@@ -1,6 +1,6 @@
 [no-report-on-subdomain-success.https.html]
   expected:
-    if os == "mac": TIMEOUT
+    if os == "mac": [OK, TIMEOUT]
   [\n    Test that include_subdomains policies do NOT report successful requests\n  ]
     expected:
-      if os == "mac": TIMEOUT
+      if os == "mac": [PASS, TIMEOUT]