Merge pull request #236 from simondeziel/ed25519-host-key

github: force ed25519 host key algo in image-upload

.github/actions/image-upload/action.yml

@@ -52,7 +52,7 @@ runs:
         # First upload contents to the temporary dir and once fully uploaded
         # move the directory to the final destination to avoid potential race
         # where simplestream-maintainer includes partially uploaded images.
-        sftp -P ${SSH_PORT} -b - "${SSH_USER}@${SSH_HOST}" <<EOF
+        sftp -oHostKeyAlgorithms=ssh-ed25519 -P ${SSH_PORT} -b - "${SSH_USER}@${SSH_HOST}" <<EOF
             put -R ${SRC_DIR}-upload/*
             rename "${IMG_DIR}/.${VERSION}" "${IMG_DIR}/${VERSION}"
             bye