[E2E] Fix dashboard card resize flake (#35751)

* [E2E] Fix dashboard card resize flake

* Remove the `@flaky` tag

* Add test to the slow group

e2e/test/scenarios/dashboard-cards/dashboard-card-resizing.cy.spec.js

@@ -236,7 +236,7 @@ describe("scenarios > dashboard card resizing", () => {
 
   it(
     `should not allow cards to be resized smaller than min height`,
-    { tags: "@flaky" },
+    { requestTimeout: 15000, tags: "@slow" },
     () => {
       const cardIds = [];
       TEST_QUESTIONS.forEach(question => {