Replace the old Github Repo

[Bumsbirne]

Can you please replace the DMCAed repo with the new one:

• https://github.com/5etools-mirror-3/5etools-src

and maybe add an option for the non PHB 2024 version

• https://github.com/5etools-mirror-3/5etools-2014-src

[pm-consultancy]

you can easily do this yourself by using the env variables
DL_LINK=https://github.com/5etools-mirror-3/5etools-src.git

[DrazorV]

and this is the command for the new image repo:
- IMG_LINK=https://github.com/5etools-mirror-3/5etools-img.git