Add tegra variant for CUDA 12.9

[traversaro]

Checklist

• Used a personal fork of the feedstock to propose changes
• Bumped the build number (if the version is unchanged)
• Reset the build number to 0 (if the version changed)
• Re-rendered with the latest conda-smithy (Use the phrase @conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• Ensured the license file is being packaged.

[traversaro]

@conda-forge-admin, please rerender

[conda-forge-admin]

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/recipe.yaml) and found it was in an excellent condition.

[traversaro]

@conda-forge-admin, please rerender

[traversaro]

Ok, the build went well. @h-vetinari @mgorny how do you suggest to proceed? Perhaps I can remove the skip, but avoid to bump the build number to avoid trash existing caches?

[h-vetinari]

I prefer not to have all that churn in the variant files. On azure we're also not so constrained that we couldn't rebuild; but perhaps the cleanest way would be to rebase such that you rerender to add tegra first, and then add a temporary skip (e.g. arm_variant_type != "tegra") in a separate commit, which I can revert after the merge with a [ci skip].

[h-vetinari]

That would make it three commits in total:

• add migrator (+ necessary recipe modifications)
• rerender
• add skip

[traversaro]

That would make it three commits in total:

• add migrator (+ necessary recipe modifications)
• rerender
• add skip

Ah, good point!

[h-vetinari]

Will you make those changes?

[traversaro]

Will you make those changes?

Yes, today I am traveling, so probably I will do them this (CET) evening or tomorrow.

[h-vetinari]

I can offer to do this if you're short on time

[traversaro]

I can offer to do this if you're short on time

My bad, I will probably reach a laptop tomorrow evening (CET), if you are able to do this before feel free, otherwise I will do it tomorrow, thanks!

[h-vetinari]

Something is strange with the github hooks; I already pushed to your branch successfully, but it isn't showing up here

[h-vetinari]

FWIW, if you look at 9095219, you'll see that I've kept your authorship.

>git show 90952196a861e17387fd7ac8cefbd546b8cb9eba
commit 90952196a861e17387fd7ac8cefbd546b8cb9eba (HEAD -> addtegra, silvio/addtegra)
Author: Silvio Traversaro <silvio.traversaro@gbionics.ai>
Date:   Thu Feb 19 09:07:04 2026 +1100

    temporarily skip non-tegra builds

    Co-Authored-By: H. Vetinari <h.vetinari@gmx.com>

The reason that GH doesn't show your avatar is (AFAICT) that silvio.traversaro@gbionics.ai is not associated with your GH profile.