Release candidate for v5.6.1

[james-d-mitchell]

No description provided.

[james-d-mitchell]

@Joseph-Edwards any chance you could have a look at why the conda ci job is failing in the meeting tomorrow?

[Joseph-Edwards]

It seems the micromamba job didn't pick up the latest version of libsemigroups:

    Name              Version       Build                 Channel    
  ─────────────────────────────────────────────────────────────────────
    [...]
    libsemigroups     3.5.2         ha6a98ec_0            conda-forge

That might not be the only issue, but that will definitely cause a build problem. I'll investigate further tomorrow if the issue still exists

[james-d-mitchell]

Thanks @Joseph-Edwards seems to no longer be an issue, thanks anyway!