Support for ARM runner

[kojix2]

[kojix2]

Workaround:

- name: Install crystal
  run: |
    curl -fsSL https://packagecloud.io/84codes/crystal/gpgkey | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/84codes_crystal.gpg > /dev/null
    . /etc/os-release
    echo "deb https://packagecloud.io/84codes/crystal/$ID $VERSION_CODENAME main" | sudo tee /etc/apt/sources.list.d/84codes_crystal.list
    sudo apt-get update -y
    sudo apt-get install -y crystal

https://packagecloud.io/84codes/crystal