Fix automerge PR

[koppor]

At #10387, there was no automerge. Investigating.

I changed the title of the action from "Dependabot auto-merge" to "Auto Merge", because this workflows merges more than dependabot PRs.

The last committer on the journal-list workflow was dependabot (01d019f). Thus, the actor is not me, but dependabot.

Mandatory checks

• Change in CHANGELOG.md described in a way that is understandable for the average user (if applicable)
• Tests created for changes (if applicable)
• Manually tested changed features in running JabRef (always required)
• Screenshots added in PR description (for UI changes)
• Checked developer's documentation: Is the information available and up to date? If not, I outlined it in this pull request.
• Checked documentation: Is the information available and up to date? If not, I created an issue at https://github.com/JabRef/user-documentation/issues or, even better, I submitted a pull request to the documentation repository.

[koppor]

Need to continue in #10387 to be able to trigger the updated workflow.

[github-actions]

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