Add workaround for comment posting / issue move

[koppor]

Detected at #7516 (comment)

Dependabot creates comments with the format #{number}. This number is treated as JabRef issue number, but it is not:

This is an issue of the RegEx of the used action ticket-check-action.

I updated the configuration to "listen" to GitHubs keywords closes etc.

Mandatory checks

• I own the copyright of the code submitted and I license it under the MIT license
• [.] Change in CHANGELOG.md described in a way that is understandable for the average user (if change is visible to the user)
• [.] Tests created for changes (if applicable)
• [.] Manually tested changed features in running JabRef (always required)
• [.] Screenshots added in PR description (if change is visible to the user)
• [.] 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.

[trag-bot]

@trag-bot didn't find any issues in the code! ✅✨

[trag-bot]

@trag-bot didn't find any issues in the code! ✅✨

[github-actions]

The build for this PR is no longer available. Please visit https://builds.jabref.org/main/ for the latest build.

[koppor]

Can only be tested on live system; therefore I am merging in.