It’s not always trivial to restart the checks and I think most of the devs just close and reopen or force push to get this to happen.
OTOH I don’t think there is any problem politely pinging for review if there is a red x that you are pretty sure is not the PRs fault and pointing that out.
Also if you feel a contribution is languishing feel free to ping in maybe a weekly basis. Things fall off peoples radars inadvertently. Btw thanks for all your recent contributions. They have been very welcome.