[CI][Packaging] Fix conda arrow-nightlies channel

[amoeba]

Describe the bug, including details regarding any error messages, version, and platform.

The Conda arrow-nightlies channel is empty, which means you can't install Arrow C++ or PyArrow nightlies from it at the moment. I noticed this in CI on apache/arrow-cookbook#352. It's my understanding that the jobs that upload artifacts to this channel are running but failing, see the failing builds at http://crossbow.voltrondata.com/.

From a quick look, the failures may just be due to Azure deprecations based on this error I see in a few Azure Pipelines logs:

The CondaEnvironment@1 (Conda environment) task has been deprecated since February 13, 2019 and will soon be retired. Use the Conda CLI ('conda') directly from a bash/pwsh/script task. Please visit https://aka.ms/azdo-deprecated-tasks to learn more about deprecated tasks.

Component(s)

Continuous Integration, Packaging

[raulcd]

This one is related: #41791
I think this will be a first step but might not fix all the issues. As we usually synchronize those jobs with the upstream arrow-cpp-feedstocks from conda-forge and we haven't updated them in a while. We can sync them on a subsequent PR too.

[amoeba]

Thanks @raulcd. It looks like by "synchronize" you are referring to the files in dev/tasks/conda-recipes/.ci_support/ which do look out of date. I'll work on #41791 and can follow that up with a PR updating those after.

[amoeba]

I made an issue (#42111) and filed a PR (#42114). I think we should merge #41883 first so the Azure jobs can run so if you want to take a look at #41883 first @raulcd that'd be great.

[raulcd]

We have removed our nightly conda-recipes:

• [CI][Packaging] Remove replicated feedstock conda recipes from main Arrow repo #41166

We are publishing pyarrow nightlies as wheels on the scientific-python-nightly channel.
I am going to close this as arrow-nightlies are not being submitted on conda.