Update feedstock to use cirun-openstack-cpu-large with Cirun

[conda-forge-admin]

Note that only builds triggered by maintainers of the feedstock (and core)
who have accepted the terms of service and privacy policy will run
on Github actions via Cirun.

• Maintainers have accepted the terms of service and privacy policy
  at https://github.com/Quansight/open-gpu-server

Also, note that rerendering with Github actions as CI provider must be done
locally in the future for this feedstock.

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

I do have some suggestions for making it better though...

For recipe:

• This recipe is using a compiler, which now requires adding a build dependence on {{ stdlib("c") }} as well. Note that this rule applies to each output of the recipe using a compiler. For further details, please see META: {{ stdlib("c") }} migration conda-forge.github.io#2102.
• You're setting a requirement on sysroot_linux- directly; this should now be done by adding a build dependence on {{ stdlib("c") }}, and overriding c_stdlib_version in recipe/conda_build_config.yaml for the respective platform as necessary. For further details, please see META: {{ stdlib("c") }} migration conda-forge.github.io#2102.
• You're setting a constraint on the __osx virtual package directly; this should now be done by adding a build dependence on {{ stdlib("c") }}, and overriding c_stdlib_version in recipe/conda_build_config.yaml for the respective platform as necessary. For further details, please see META: {{ stdlib("c") }} migration conda-forge.github.io#2102.
• In your conda_build_config.yaml, please change the name of MACOSX_DEPLOYMENT_TARGET, to c_stdlib_version!