Add docker configuration for gd library

[Amoifr]

Q	A
License	MIT

What's in this PR?

Add docker configuration for gd library

Why?

Because it wasn"t present when I need ;-)

[alexander-schranz]

@Amoifr Thx for working on this. Can you please rebase your merge request to 2.5 version.

[Amoifr]

I've rebased my branch

[alexander-schranz]

In the rebase to 2.5 you need to drop the commits which are not yours:

git rebase --interactive origin/2.6 --onto origin/2.5

Should handle that if there still commits which are drop them and then do a force push to your branch:

git push <yourremote> --force

[Amoifr]

I do the rebase but I still have some changes not of my production

[alexander-schranz]

@Amoifr Thx did the rebase. On 2.6 branch we support Avif if you want to update that docs also with a pull request it would be awesome.