add arm support

Author: lanefu

tasks/install_runner.yml

@@ -68,7 +68,7 @@
 
 - name: Download runner package version - "{{ runner_version }}" (RUN ONCE)
   get_url:
-    url: "https://github.com/actions/runner/releases/download/v{{ runner_version }}/actions-runner-linux-x64-{{ runner_version }}.tar.gz"
+    url: "https://github.com/actions/runner/releases/download/v{{ runner_version }}/actions-runner-linux-{{ github_actions_architecture }}-{{ runner_version }}.tar.gz"
     dest: "{{ runner_pkg_tempdir }}/actions-runner-linux-{{ runner_version }}.tar.gz"
     force: no
   run_once: yes

vars/main.yml

@@ -1,2 +1,8 @@
 ---
 # vars file for ansible-github_actions_runner
+github_actions_architecture_map:
+  amd64: x64
+  x86_64: x64
+  armv7l: arm
+  aarch64: arm64
+github_actions_architecture: "{{ github_actions_architecture_map[ansible_architecture] }}"