[2.5.x] Rebuild for libffi 3.5

[regro-cf-autotick-bot]

This PR has been triggered in an effort to update libffi35.

Notes and instructions for merging this PR:

1. Please merge the PR only after the tests have passed.
2. Feel free to push to the bot's branch to update this PR if needed.

Please note that if you close this PR we presume that the feedstock has been rebuilt, so if you are going to perform the rebuild yourself don't close this PR until the your rebuild has been merged.

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If this PR was opened in error or needs to be updated please add the bot-rerun label to this PR. The bot will close this PR and schedule another one. If you do not have permissions to add this label, you can use the phrase @conda-forge-admin, please rerun bot in a PR comment to have the conda-forge-admin add it for you.

_{This PR was created by the regro-cf-autotick-bot. The regro-cf-autotick-bot is a service to automatically track the dependency graph, migrate packages, and propose package version updates for conda-forge. Feel free to drop us a line if there are any issues! This PR was generated by https://github.com/regro/cf-scripts/actions/runs/18738586402 - please use this URL for debugging.}

[conda-forge-admin]

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

I wanted to let you know that I linted all conda-recipes in your PR (recipe/meta.yaml) and found some lint.

Here's what I've got...

For recipe/meta.yaml:

• ❌ 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.

For recipe/meta.yaml:

• ℹ️ In conda-forge.yml: $.compiler_stack = comp7.

  'Compiler Stack' is deprecated.
  Compiler stack environment variable. This is used to specify the compiler
  stack to use for builds. Deprecated.

  compiler_stack: comp7

  Schema

  {
    "anyOf": [
      {
        "type": "string"
      },
      {
        "type": "null"
      }
    ],
    "default": "comp7",
    "deprecated": true,
    "title": "Compiler Stack"
  }

• ℹ️ In conda-forge.yml: $.max_py_ver = 37.

  'Max Py Ver' is deprecated.
  Maximum Python version. This is used to specify the maximum Python version
  to use for builds. Deprecated.

  max_py_ver: 37

  Schema

  {
    "anyOf": [
      {
        "type": "string"
      },
      {
        "type": "null"
      }
    ],
    "default": "37",
    "deprecated": true,
    "title": "Max Py Ver"
  }

• ℹ️ In conda-forge.yml: $.max_r_ver = 35.

  'Max R Ver' is deprecated.
  Maximum R version. This is used to specify the maximum R version to use
  for builds. Deprecated.

  max_r_ver: 34

  Schema

  {
    "anyOf": [
      {
        "type": "string"
      },
      {
        "type": "null"
      }
    ],
    "default": "34",
    "deprecated": true,
    "title": "Max R Ver"
  }

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