ci: debug Host key verification failed error

.drone.yml

@@ -37,7 +37,7 @@ steps:
       - echo DEBUG ls -alh ~/.ssh
       - ls -alh ~/.ssh
       - 'echo DEBUG: Using NIX_FLAGS: $NIX_FLAGS'
-      - nix $$NIX_FLAGS develop --command deploy --magic-rollback false --skip-checks --targets '.#host_001_momo_koeln' --ssh-opts='-v'
+      - nix $$NIX_FLAGS develop --command deploy --magic-rollback false --skip-checks --targets '.#host_001_momo_koeln' --ssh-opts='-v' -- --impure
 
 ---
 kind: pipeline
@@ -163,6 +163,6 @@ volumes:
 
 ---
 kind: signature
-hmac: b51c074c744543cdd1596025708b7a79203038b948bedcca553644d7631d7833
+hmac: d10ac7912c87547d54d9883f456d5fbc5302fa9ca80941ed9a9b93080e32ef88
 
 ...