Migrate to rattler-build and cleanup patches

[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.

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

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

For recipe/meta.yaml:

• ℹ️ The recipe is not parsable by parser conda-souschef (grayskull). This parser is not currently used by conda-forge, but may be in the future. We are collecting information to see which recipes are compatible with grayskull.
• ℹ️ The recipe is not parsable by parser conda-recipe-manager. The recipe can only be automatically migrated to the new v1 format if it is parseable by conda-recipe-manager.

_{This message was generated by GitHub Actions workflow run https://github.com/conda-forge/conda-forge-webservices/actions/runs/15488995589. Examine the logs at this URL for more detail.}

[traversaro]

Perfect, the test fail as expected. However, at this point in my experience is difficult to debug issues with conda-build, so even if this is a complex feedstock, it could make sense to first try to migrate to rattler-build.

[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]

I had some problem in importing the old patches in rattler-build, so I normalized them by importing them in git on top of the mujoco 3.3.2 tag with git quiltimport, and then I exported them back with git format-patches.

[traversaro]

Even after the rattler-build conversion, the segfault is still there:

 │ $SRC_DIR/conda_build.sh: line 14: 22943 Segmentation fault: 11  mjpython --version

[traversaro]

Ok, as the rattler-build migration and patches cleanup is something it make sense to merge indipendently from the mjpython investigation and fixes, I will reopen a follow up PR that uncomments the test to continue to investigation.