upgrade to python 3.10 in the Dockerfiles (#7893)
* upgrade to python 3.10
* fix
* try https://askubuntu.com/questions/1459694/can-not-find-python3-10-after-apt-get-installation
* fix
* up
* yes
* okay
* up
* up
* up
* up
* up
* check
* okay
* up
* i[
* fix