(wpt) [PR] jgraham merged #29353 by github-actions[bot] into master: Regenerate WPT certificates - git.io/JZ6FS

(wpt) [PR] jgraham merged #28988 by foolip into master: Run mypy for tools/serve/ (but still allow untyped defs) - git.io/Jstui

(wpt) [PR] moz-wptsync-bot requested #29355 merge into master: [Gecko Bug 1716171] Make inert-retargeting-iframe.tentative.html more robust. - git.io/JZNWs

(wpt) [PR] moz-wptsync-bot merged #29354 by moz-wptsync-bot into master: [Gecko Bug 1681958] Use eReplacedSizing to assert replaced elements for aspect-ratio. - git.io/JZ6Nc