[poppler] Please if you previously had sent a patch via bugzilla propose a merge request via gitlab

[Albert Astals Cid]

It's much easier to keep track, comment, have the CI run, etc.

Some of them are at
  https://gitlab.freedesktop.org/poppler/poppler/issues?label_name=patch

But for sure i missed tagging the issues since there's 571 of them.

Cheers,
  Albert