merge_pr_46425

[wdspec] Wait for 100ms in release_actions fixture

This allows to avoid relatively frequent failures on mozilla's windows CI

Differential Revision: https://phabricator.services.mozilla.com/D209333

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1879556
gecko-commit: 60bd84a99544c65635a66686db7aeda2500e6ae9
gecko-reviewers: webdriver-reviewers, whimboo