I found the error.
Gitlab exports the zip file as
plugin-py-extract-all-main.
You have to rename the folder to
plugin-py3-extract-all. Then it is working.
I could not find a way on Gitlab to give it the proper name in the first place.
The problem does not occur when using git.
Gitlab exports the zip file as
plugin-py-extract-all-main.
You have to rename the folder to
plugin-py3-extract-all. Then it is working.
I could not find a way on Gitlab to give it the proper name in the first place.

The problem does not occur when using git.
