[E2E] Skip super flaky revision history test (#30919)

e2e/test/scenarios/collections/revision-history.cy.spec.js

@@ -82,7 +82,8 @@ describe("revision history", () => {
               cy.findByText(/rearranged the cards/).should("not.exist");
             });
 
-            it("should be able to revert a dashboard (metabase#15237)", () => {
+            // skipped because it's super flaky in CI
+            it.skip("should be able to revert a dashboard (metabase#15237)", () => {
               visitDashboard(1);
               openRevisionHistory();
               clickRevert(/created this/);