Добавил ssh key

.drone.yml

@@ -19,7 +19,12 @@ steps:
       SSH_KEY:
         from_secret: SSH_KEY
     commands:
-      - echo "$SSH_KEY" > $HOME/.ssh/id_rsa
+      - which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )
+      - eval $(ssh-agent -s)
+      - echo "$SSH_KEY" | ssh-add -
+      - mkdir -p ~/.ssh
+      - chmod 700 ~/.ssh
+      - chmod 644 ~/.ssh/known_hosts
       - echo "$GPG_PRIVATE_KEY" >> gpg.key
       - echo "$MAVEN_SETTINGS" >> maven-settings.xml
       - gpg --pinentry-mode loopback --passphrase $GPG_PASSPHRASE --import gpg.key