Workflow finished nicely but it's still blocking PRs on GitHub

We have a PR running on CircleCI here:

The workflow already finished, but a step (in the red box below) still blocks us. Our release step is configured to be on tagging only. It was working fine until yesterday but now it’s blocking our PR to be merged.

Here’s our config:

You shouldn’t have an optional job be required in GitHub. Since it’s optional, it won’t always run and GitHub will wait for it.