[WebDriver BiDi] script.realmCreated worker tests expect a script URL instead of a serialized origin #63009

The WebDriver BiDi script.realmCreated worker tests compare RealmInfo.origin with worker_url.

The inline() fixture returns a complete script URL containing a path and query string. However, the WebDriver BiDi specification defines RealmInfo.origin as the serialization of the worker environment settings object's origin.

For example, for a worker loaded from:
https://example.test/path/worker.js?x=1

the expected origin is:
https://example.test

not the complete worker script URL.

Affected tests

The incorrect comparison appears in:

• test_dedicated_worker
• test_shared_worker
• test_service_worker
• test_dedicated_worker_subscribe_to_one_context
• test_dedicated_worker_subscribe_to_user_context

Source:
https://github.com/web-platform-tests/wpt/blob/1e91be47ac599571cde8a98b0a11cafc3a9e281c/webdriver/tests/bidi/script/realm_created/realm_created.py

Specification:
https://github.com/w3c/webdriver-bidi/blob/318aec70256ca812c1db801665a2b8291691bf31/index.bs#L12230-L12282

Expected result

The tests should compare origin with the serialized origin derived from
worker_url, for example using the existing get_origin_from_url helper.
The existing realm type, identifier, and owner checks should remain unchanged.

Context

This was exposed while implementing dedicated-worker realm support in WebKit:
WebKit/WebKit#73149