[C++] Nightly arrow cookbooks builds are failing for C++

[raulcd]

Arrow nightly builds for C++ cookbooks have been failing for the last 3-4 days: https://github.com/apache/arrow-cookbook/actions/workflows/test_arrow_nightly_cookbook.yml

It seems the packages can't be found.

$ conda env create -f cpp/dev.yml
Collecting package metadata (repodata.json): done
Solving environment: failed

ResolvePackageNotFound: 
  - arrow-nightlies::pyarrow
  - arrow-nightlies::arrow-cpp

[raulcd]

Closing this because it got solved on the last Release and the are not failing anymore