bot does not trigger version updates

### Solution to issue cannot be found in the documentation.

- [X] I checked the documentation.

### Issue

bot does not trigger version updates: v0.16.4 is out

### Installed packages

```shell
n/a
```

### Environment info

```shell
n/a
```

The issue names no files, tests, or configuration entry points. Start by inspecting the repository's bot and version-update configuration, then determine why the v0.16.4 release was not detected. Done means the bot recognizes a new version and opens the expected update workflow.

Written by the indexing model from the issue text.