[release-new] find a way to correctly hande pypi tokens to push on it in the CI
The problem is that to be able to upload to pypi we need a token for that and welcome to securities issues.
Current situation:
- we can use the same token everywhere but this might be meh
- or we can generate a token per repository but this is annoying and we aren't sure we can easily do tht
But:
- we don't know yet if we can generate a token per repository easily with an API on pypi, apparently not? https://warehouse.readthedocs.io/api-reference/ (another solution is to use stuff like selenium/mechanize/...)
- we need to integrate this token in every pipeline (the API seems to allow that)