Improve error message when a conflict is found by pip/mamba.

[fabioz]

I was trying to resolve some dependency conflicts between robocorp and robocorp-actions. I get a 300 line report telling all kinds of things and in the middle of it (line 129) reads this

The conflict is caused by:
    robocorp 2.0.2 depends on robocorp-tasks<4.0.0 and >=3.0.3
    robocorp-actions 0.1.0 depends on robocorp-tasks==3.0.0

Seeing these two lines makes it super clear. But I have to crawl through multiple blocks that look exactly the same on top level.
How difficult would it be to raise this info higher in the report?