aiida-quantumespresso has now by default SSSP v1.3 efficiency.
The fake SSSP pseudo family is therefore updated corrispondingly.

Some dependencies made the RTD build to break.
This dependencies update fixes it. Moreover, MyST
notebook has finally released a stable 1.0 version.

This was necessary when Django backends were still supported, but since
its removal in AiiDA v2.0 just loading the ORM no longer actually needs
to connect to a database. In principle, the documentation no longer
needs a profile whatsoever, except for `aiida-quantumespresso` the
AutoAPI still needs it because in loading the specifications of certain
`Process` classes, a profile is loaded. So the docs `conf.py` now loads
an empty dummy profile for this purpose.