merge_pr_49314

Add "remoteAsyncEvents" and "sessionHistoryInParent" keywords in the list of update_properties for wpt-update command.

Differential Revision: https://phabricator.services.mozilla.com/D229771

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1932597
gecko-commit: c1a15d8f1a23b026bb4e33c2adf5871e41d9a776
gecko-reviewers: jgraham