Fix selector for purge cache link

Author: pavanpatil1

tests/e2e-playwright/specs/03_purge-backendcache-test.spec.js

@@ -9,11 +9,11 @@
 
      await page.waitForTimeout(1000);
 
-     await page.click('role=link[name="Purge Cache"i]');
+     await page.click("a[title='Purge Cache']");
 
      await page.waitForTimeout(2000);
 
      expect( page.locator( "div[class='updated'] p" )).toHaveText( 'Purge initiated' );
    });
  });
- 
+