Remove all of the test.skip() calls.

test/sql/selfServeExample.spec.ts

@@ -2,7 +2,6 @@ import { expect, test } from "@playwright/test";
 import { DataExplorer, TestAccount } from "../fx";
 
 test("Self Serve", async ({ page, browserName }) => {
-  test.skip();
   /* Skipping this test which fails on webkit only. Clicking on the dropdown does not open the dropdown.
     It fails with the error below which seems to indicate that some <div> (with class "ms-Stack css-128", the label of the dropdown?) is intercepting the click.
         - retrying click action, attempt #555