RPP: disable flaking LayoutShiftDetails test

I will follow-up and investigate but disabling to get tree green.

Bug: 406981939
Change-Id: I7e2a546795ef26f218d4fea35086bf9e4ac77d7a
No-Tree-Checks: True
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6406895
Commit-Queue: Jack Franklin <[email protected]>
Auto-Submit: Jack Franklin <[email protected]>
Commit-Queue: Ergün Erdoğmuş <[email protected]>
Reviewed-by: Ergün Erdoğmuş <[email protected]>

Author: jackfranklin

front_end/panels/timeline/TimelineDetailsView.test.ts

@@ -83,7 +83,8 @@ describeWithEnvironment('TimelineDetailsView', function() {
     assert.strictEqual(duration.innerText, 'Duration37.85 ms (at 109.82 ms)');
   });
 
-  it('renders the layout shift component for a single layout shift', async function() {
+  // Semi-regularly flaking on CQ bots.
+  it.skip('[crbug.com/406981939]: renders the layout shift component for a single layout shift', async function() {
     const {parsedTrace} = await TraceLoader.traceEngine(this, 'shift-attribution.json.gz');
     const detailsView = new Timeline.TimelineDetailsView.TimelineDetailsPane(mockViewDelegate);
     await detailsView.setModel({