planet API is making the CI crash

[12rambau]

All the rececent CI based on master are crashing as new deprecation warning are raised during the Jupyter-sphinx execution:

WARNING: Cell printed to stderr:
21
/opt/hostedtoolcache/Python/3.8.13/x64/lib/python3.8/site-packages/planet/api/init.py:38: ClientV1DeprecationWarning: The planet.api module is deprecated and will be removed in version 2.0.0. For more details please see the discussion at https://github.com/planetlabs/planet-client-python/discussions.

I think we need to have a look to see if we need to fix planet version

[12rambau]

The solution might be here: jupyter/jupyter-sphinx#178

[dfguerrerom]

Anyways I think we have to move to version 2. v1 is ugly.

[12rambau]

I made sure sphinx stop throwing warning to our face, we'll move to v2 whenever we want