Update JetPack page with superbuild installation instructions

[martinaxgloria]

This PR aims to update the JetPack documentation page for adding the installation of the robotology-superbuild with conda dependencies. Since YARP has dropped the support to Ubuntu 20.04 with apt dependencies and we have some Jetson board based on this OS version, to install the robotology-superbuild (or, in general, the iCub/ergoCub software) is using conda.

We already have the documentation about how to install the superbuild using conda binaries, it was added in:

• Add documentation for installing binaries via conda #261
• Add conda binary installation and deprecate Deb packages #279

I added only a piece of information in the JetPack post-flashing operations on how to install the superbuild in general on a iCub/ergoCub machine (I linked the page for that), and in particular a warning for the machines stuck on Ubuntu 20.04.

Please let me know if this solution could work

cc @Nicogene @traversaro @pattacini

[traversaro]

I added only a piece of information in the JetPack post-flashing operations on how to install the superbuild in general on a iCub/ergoCub machine (I linked the page for that), and in particular a warning for the machines stuck on Ubuntu 20.04.

Great, thanks! Related to that, there was no big announcement, but for users that need ROS there are now updated ROS Jazzy packages on robostack, so you can easily use conda also with ROS Jazzy.

[pattacini]

Thanks!