add arm build

Author: kratsg

.github/workflows/docker.yml

@@ -94,6 +94,7 @@ jobs:
           build-args: |
             RUNNER_VERSION=${{ env.RUNNER_VERSION }}
             RUNNER_CONTAINER_HOOKS_VERSION=${{ env.RUNNER_CONTAINER_HOOKS_VERSION }}
+          platforms: linux/amd64,linux/arm64
           load: true
           push:
             ${{ github.event_name == 'push' && github.ref == 'refs/heads/main'