[New k6 Perf Test]: Verify the page title of the Shop page

[juliaamosova]

Describe the solution you'd like

In p1712762933174399/1712740857.054269-slack-C7YPW6K40, Atomic shared a list of assertions from their smoke tests that need to be added to our k6 perf tests.

For example, Atomic tests for the page title of the /shop page below:

$this->deploy_checks['pool1']['https://xxxxxx.xxxxx.yyyyy/shop/'] = array(
    sprintf( '/%s/', preg_quote( '<title>Shop &#8211; Site Title</title>', '/' ) ),
    <h2\s+[^>]*class="woocommerce-loop-category__title"[^>]*>\s*Clothing/i'

☝️ This could be added to the plugins/woocommerce/tests/performance/requests/shopper/shop-page.js. Currently, this test does not check for the Shop page title.

Describe alternatives you've considered

No response

Additional context

No response