Bug 1664398 [wpt PR 25481] - Docs: assert_object_equals is DEPRECATED…

…, a=testonly

Automatic update from web-platform-tests
Docs: assert_object_equals is DEPRECATED (#25481)

See web-platform-tests/wpt#2033.
--

wpt-commits: 506aebf28c1ae528835241a32d0a2fb3db4e6dfc
wpt-pr: 25481

testing/web-platform/tests/docs/writing-tests/testharness-api.md

@@ -866,6 +866,8 @@ asserts that `expected` is an Array, and `actual` is equal to one of the
 members i.e. `expected.indexOf(actual) != -1`
 
 ### `assert_object_equals(actual, expected, description)`
+**DEPRECATED**: see [issue #2033](https://github.com/web-platform-tests/wpt/issues/2033).
+
 asserts that `actual` is an object and not null and that all enumerable
 properties on `actual` are own properties on `expected` with the same values,
 recursing if the value is an object and not null.