fix(download): Correct Youki download URL for arm64 architecture

On systems where ansible_architecture is reported as 'arm64' (such as Apple Silicon Macs), downloading Youki fails because the release artifacts are named with 'aarch64'.

Author: burxtx

roles/kubespray_defaults/defaults/main/download.yml

@@ -166,7 +166,7 @@ crio_download_url: "{{ storage_googleapis_url }}/cri-o/artifacts/cri-o.{{ image_
 helm_download_url: "{{ get_helm_url }}/helm-v{{ helm_version }}-linux-{{ image_arch }}.tar.gz"
 runc_download_url: "{{ github_url }}/opencontainers/runc/releases/download/v{{ runc_version }}/runc.{{ image_arch }}"
 crun_download_url: "{{ github_url }}/containers/crun/releases/download/{{ crun_version }}/crun-{{ crun_version }}-linux-{{ image_arch }}"
-youki_download_url: "{{ github_url }}/youki-dev/youki/releases/download/v{{ youki_version }}/youki-{{ youki_version }}-{{ ansible_architecture }}-gnu.tar.gz"
+youki_download_url: "{{ github_url }}/youki-dev/youki/releases/download/v{{ youki_version }}/youki-{{ youki_version }}-{{ 'aarch64' if ansible_architecture == 'arm64' else ansible_architecture }}-gnu.tar.gz"
 kata_containers_download_url: "{{ github_url }}/kata-containers/kata-containers/releases/download/{{ kata_containers_version }}/kata-static-{{ kata_containers_version }}-{{ image_arch }}.tar.xz"
 # gVisor only supports amd64 and uses x86_64 to in the download link
 gvisor_runsc_download_url: "{{ storage_googleapis_url }}/gvisor/releases/release/{{ gvisor_version }}/{{ ansible_architecture }}/runsc"
@@ -527,7 +527,7 @@ downloads:
   youki:
     file: true
     enabled: "{{ youki_enabled }}"
-    dest: "{{ local_release_dir }}/youki-{{ youki_version }}-{{ ansible_architecture }}.tar.gz"
+    dest: "{{ local_release_dir }}/youki-{{ youki_version }}-{{ 'aarch64' if ansible_architecture == 'arm64' else ansible_architecture }}.tar.gz"
     checksum: "{{ youki_archive_checksum }}"
     url: "{{ youki_download_url }}"
     unarchive: true