github action npm install failed

[stardustman]

hello,I use hexo-next-utteranc , when I use github actions to deploy my blog, but when I run npm install ,something is error

npm ERR! Error while executing:
npm ERR! /usr/bin/git ls-remote -h -t ssh://git@github.com/theme-next/hexo-next-utteranc.git
npm ERR! 
npm ERR! Warning: Permanently added the RSA host key for IP address '140.82.112.3' to the list of known hosts.
npm ERR! git@github.com: Permission denied (publickey).
npm ERR! fatal: Could not read from remote repository.
npm ERR! 
npm ERR! Please make sure you have the correct access rights
npm ERR! and the repository exists.
npm ERR! 
npm ERR! exited with error code: 128

how to resolve it?