Add geo patch as default network patch

[Neylix]

Description

There is some possibilities that the network patch in a beacon summary aggregate is nil.
In that case, when doing the self repair, we add a default network patch with the node geo patch

Fixes #1136

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Unit test

Also add logs in function update_p2p_availabilities when running a single node (it create an aggregate with empty network patch list

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules