fix: Flaky E2E test for Progress steps (#709)

# Motivation

A new step was included in the Progress step component showcase, but
that means that we should wait slightly more for the animation to finish
before taking the snapshot, to be sure and avoid flakiness.

Author: AntonioVentilii

e2e/progress-steps.e2e.ts

@@ -14,7 +14,7 @@ test("Second step is in progress", async ({ page }) => {
   const showcase = page.getByTestId("showcase");
   await showcase.scrollIntoViewIfNeeded();
 
-  // Hide spinner to avoid test failing if not exact same timing
+  // Hide spinner to avoid test failing if not the exact same timing
   await page.evaluate(() =>
     document.querySelector(".spinner")?.setAttribute("style", "opacity: 0;"),
   );
@@ -32,7 +32,7 @@ test("All steps are completed", async ({ page }) => {
   await toggle.click();
 
   // Wait for animation
-  await page.waitForTimeout(2500);
+  await page.waitForTimeout(3500);
 
   await expect(page).toHaveScreenshot();
 });