Fix SSH key injection on GitLab Runner image creation

profile/files/gitlab_runner/libvirt/create-base-image.sh

@@ -13,7 +13,7 @@ virt-builder debian-10 \
     --run-command 'useradd -m -p "" gitlab-runner -s /bin/bash' \
     --install gitlab-runner,git,git-lfs,openssh-server \
     --run-command "git lfs install --skip-repo" \
-    --ssh-inject gitlab-runner:file:/root/.ssh/id_rsa.pub \
+    --ssh-inject gitlab-runner:file:/root/.ssh/id_ed25519.pub \
     --run-command "echo 'gitlab-runner ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers" \
     --run-command "sed -E 's/GRUB_CMDLINE_LINUX=\"\"/GRUB_CMDLINE_LINUX=\"net.ifnames=0 biosdevname=0\"/' -i /etc/default/grub" \
     --run-command "grub-mkconfig -o /boot/grub/grub.cfg" \