Merge release branch 8.0.0 into develop

Release action.

Don't we need to check the dataset isn't null before calling close?

PS: no need to set the local parameter to null.

FWIW, GDALClose currently checks for nullptr and exists early.

Thanks @lnicola. I wasn't sure!

I don't remember if there was a reason for it, but what about shipping it with OTB (Linux) binary releases?

Yes it's a better idea, because not everyone would download the sources to get the script. Let's go for this solution

changed milestone to %8.0.0

merged