Fix remove dev dependency laravel-langscanner from production

[jakob-info]

Summary

The php dependency "druc/laravel-langscanner" got moved into development dependencies. Fixes #479

Checklist

• [x ] I have read the contributing guidelines.
• [x ] My code is of good quality and follows the coding standards of the project.
• [x ] I have tested my changes, and they work as expected.

Thank you for your contribution! 🎉

[github-actions]

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[jakob-info]

I have read the CLA Document and I hereby sign the CLA

[daveearley]

Well spotted. Thanks for this!