Old URL to git.iter as a default for AL_PLUGINS_GIT_REPOSITORY

[hetsko]

Hi, tiny issue - I've randomly noticed that when you enable AL_PLUGINS, the automatic dependency download in CMake config still points to git.iter.org repo and the main branch. Is this intentional?

• https://github.com/iterorganization/IMAS-Core/blob/main/common/cmake/ALCommonConfig.cmake#L36

I see that the plugins repo is open-sourced here: https://github.com/iterorganization/IMAS-Core-Plugins although there is no main branch, just develop... Not intended for use yet?

I have not used the plugins myself and I don't actually know what is the status and/or intention for them (legacy?).