ci: set ssh-key for deployment

.woodpecker/ansible-playbook.yml

@@ -9,9 +9,11 @@ steps:
       - ansible-lint --version
       - echo $${VAULTPASS} > ./vault-pass.yml # nach des Secret in Großschreibung
       - ansible-galaxy install -r requirements.yaml
+      - echo $${SSHKEY} > id_ed25519
+      - chmod 0400 id_ed25519
       - ansible-playbook playbooks/2_all.yml playbooks/3_service/* --limit production
     # https://woodpecker-ci.org/docs/usage/secrets#use-secrets-in-commands
-    secrets: [vaultpass]
+    secrets: [vaultpass, sshkey]
     when:
       - event: [push, pull_request_closed]
         branch: master