Upgrade barryvdh/laravel-dompdf dependency to 3.0.0 pls

[mspiderv]

Describe the bug
barryvdh/laravel-dompdf:2 depends on dompdf/dompdf:2 and this version is buggy (for example: dompdf/dompdf#3539). There is already version 3 of both barryvdh/laravel-dompdf and dompdf/dompdf libraries, but you are still using version 2. Can you please use version 3 of the barryvdh/laravel-dompdf library?

To Reproduce
Steps to reproduce the behavior:
Cannot generate PDF invoice in very specific scenario. More info here: dompdf/dompdf#3539

Expected behavior
You are able to generate PDF invoice.

LaravelDaily/laravel-invoices Version
4.0.0