Description:
A clear and concise description of what the bug is.

Linux arm64 hosted runners now available for free in public repositories, and Python 3.9-3.14 install on the new ubuntu-24.04-arm and ubuntu-22.04-arm runners, but pypy3.10 fails.

https://github.blog/changelog/2025-01-16-linux-arm64-hosted-runners-now-available-for-free-in-public-repositories-public-preview/

Action version:
Specify the action version

actions/setup-python@v5
https://github.com/actions/setup-python/releases/tag/v5.3.0

Platform:

• Ubuntu

  macOS

  Windows
  To pick up a draggable item, press the space bar. While dragging, use the arrow keys to move the item. Press space again to drop the item in its new position, or press escape to cancel.

Runner type:

• Hosted

  Self-hosted
  To pick up a draggable item, press the space bar. While dragging, use the arrow keys to move the item. Press space again to drop the item in its new position, or press escape to cancel.

Tools version:

PyPy3.10

Repro steps:
A description with steps to reproduce the issue. If your have a public example or repo to share, please provide the link.

https://github.com/hugovk/test/blob/6157105de6170017b8b4684cb4ac61a997e93661/.github/workflows/test.yml

jobs:
  build:
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        python-version: ["pypy3.10", "3.13"]
        os: [
          windows-latest,
          macos-latest,
          ubuntu-latest,
          ubuntu-22.04-arm,
          ubuntu-24.04-arm,
        ]

    steps:
      - uses: actions/checkout@v4

      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}

https://github.com/hugovk/test/actions/runs/12842873775/job/35814233523

Expected behavior:

pypy3.10 installs on ubuntu-24.04-arm and ubuntu-22.04-arm, just like on ubuntu-latest, macos-latest, and windows-latest.

Actual behavior:

Run actions/setup-python@v5
Installed versions
  PyPy version 3.[10](https://github.com/hugovk/tinytext/actions/runs/12842839625/job/35814162033#step:3:11) (x) was not found in the local cache
  Stable PyPy version 3.10 (x) with arch arm64 not found
  Trying pre-release versions
  Error: PyPy version 3.10 (x) with arch arm64 not found