Revert "Try to select dropdown item by xpath selector"

This reverts commit 8eb42a64e2.

test/sql/selfServeExample.spec.ts

@@ -9,8 +9,7 @@ test("Self Serve", async ({ page }) => {
 
   const regionDropdown = explorer.frame.getByText("Select a region");
   await regionDropdown.click();
-  await page.waitForSelector("xpath=//button[@role='option'");
-  const firstOption = explorer.frame.locator("xpath=//button[@role='option'").first();
+  const firstOption = explorer.frame.getByRole("option").first();
   await firstOption.waitFor();
   await firstOption.click();