dependabot pretends to rebase PRs for over 20 minutes without submitting updates about failures

[JasonGross]

Is there an existing issue for this?

• I have searched the existing issues

Package ecosystem

submodules

Package manager version

No response

Language version

No response

Manifest location and content before the Dependabot update

No response

dependabot.yml content

https://github.com/mit-plv/fiat-crypto/blob/298493f16748d9f4313c207e65a518d9c9906e84/.github/dependabot.yml#L12-L18

Updated dependency

No response

What you expected to see, versus what you actually saw

I expect dependabot to successfully rebase my PR within a couple minutes after I say @dependabot rebase, or to comment on the issue indicating that it has failed for some reason. Instead, it seems to be stuck in a "rebasing" state

Native package manager behavior

No response

Images of the diff or a link to the PR, issue, or logs

mit-plv/fiat-crypto#2057

Smallest manifest that reproduces the issue

No response