Bug 1862569 - update the test failure for content-visibility-with-popover-top-layer-006.html. r=fredw

Differential Revision: https://phabricator.services.mozilla.com/D194606

testing/web-platform/meta/css/css-contain/content-visibility/content-visibility-with-popover-top-layer-005.html.ini

@@ -0,0 +1,4 @@
+[content-visibility-with-popover-top-layer-005.html]
+  expected:
+    if (os == "win") and (processor == "x86_64"): [PASS, FAIL]
+    [PASS, FAIL]

testing/web-platform/meta/css/css-contain/content-visibility/content-visibility-with-popover-top-layer-006.html.ini

@@ -0,0 +1,3 @@
+[content-visibility-with-popover-top-layer-006.html]
+  [CSS Content Visibility: offscreen c-v auto content is relevant when in top layer]
+    expected: FAIL