LibWeb: Stub out Release Actions

This allows WPT to open the browser, and it no longer instantly crashes

Userland/Libraries/LibWeb/WebDriver/Client.cpp

@@ -96,6 +96,7 @@ static constexpr auto s_webdriver_endpoints = Array {
     ROUTE(POST, "/session/:session_id/cookie"sv, add_cookie),
     ROUTE(DELETE, "/session/:session_id/cookie/:name"sv, delete_cookie),
     ROUTE(DELETE, "/session/:session_id/cookie"sv, delete_all_cookies),
+    ROUTE(DELETE, "/session/:session_id/actions"sv, release_actions),
     ROUTE(POST, "/session/:session_id/alert/dismiss"sv, dismiss_alert),
     ROUTE(POST, "/session/:session_id/alert/accept"sv, accept_alert),
     ROUTE(GET, "/session/:session_id/alert/text"sv, get_alert_text),

Userland/Libraries/LibWeb/WebDriver/Client.h

@@ -92,6 +92,9 @@ public:
     virtual Response delete_cookie(Parameters parameters, JsonValue payload) = 0;
     virtual Response delete_all_cookies(Parameters parameters, JsonValue payload) = 0;
 
+    // 15. Actions, https://w3c.github.io/webdriver/#actions
+    virtual Response release_actions(Parameters parameters, JsonValue payload) = 0;
+
     // 16. User prompts, https://w3c.github.io/webdriver/#user-prompts
     virtual Response dismiss_alert(Parameters parameters, JsonValue payload) = 0;
     virtual Response accept_alert(Parameters parameters, JsonValue payload) = 0;