Disable flaky test (#12210)

Author: MidhunSureshR

playwright/e2e/timeline/timeline.spec.ts

@@ -552,7 +552,11 @@ test.describe("Timeline", () => {
             );
         });
 
-        test("should set inline start padding to a hidden event line", async ({ page, app, room }) => {
+        test("should set inline start padding to a hidden event line", async ({ page, app, room, cryptoBackend }) => {
+            test.skip(
+                cryptoBackend === "rust",
+                "Disabled due to screenshot test being flaky - https://github.com/element-hq/element-web/issues/26890",
+            );
             await sendEvent(app.client, room.roomId);
             await page.goto(`/#/room/${room.roomId}`);
             await app.settings.setValue("showHiddenEventsInTimeline", null, SettingLevel.DEVICE, true);