Bug 1931923 [wpt PR 49231] - Update wpt metadata, a=testonly

wpt-pr: 49231
wpt-type: metadata

Author: moz-wptsync-bot

testing/web-platform/meta/selection/shadow-dom/tentative/Selection-getComposedRanges-dom-mutations-removal.html.ini

@@ -11,6 +11,9 @@
   [Range is between two light slotted contents. Removing start container rescopes to its parent in light tree.]
     expected: FAIL
 
+  [Range is across shadow trees. Removing ancestor shadow host rescopes composed range end to parent.]
+    expected: FAIL
+
 
 [Selection-getComposedRanges-dom-mutations-removal.html?mode=open]
   [Range is fully in shadow tree. Removing shadow host collapses composed StaticRange. Note it does not update previously returned composed StaticRange.]
@@ -24,3 +27,6 @@
 
   [Range is between two light slotted contents. Removing start container rescopes to its parent in light tree.]
     expected: FAIL
+
+  [Range is across shadow trees. Removing ancestor shadow host rescopes composed range end to parent.]
+    expected: FAIL