How to deploy a Node.js application using GitHub Actions and SFTP?

I am trying to deploy a Node.js application to my linode using GitHub actions and the SFTP protocol.

I have added an additional job to my GitHub Actions workflow YML file as follows:

deploy-via-sftp:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: SFTP Deploy to Linode
uses: wlixcc/SFTP-Deploy-Action@v1.2.1
with:
username: ${{ secrets.LINODE_USER }}
server: ${{secrets.IP}}
port: 22
ssh_private_key: ${{ secrets.LINODE_SSH }}
local_path: ./* # using default path
remote_path: /home/quoterepo
# name of app is quoterepo
args: '-o ConnectTimeout=5'

However, when I push my latest code to my remote repository I receive the following error:

ssh: Could not resolve hostname : Name does not resolve
ssh start

Any ideas as to what is causing the problem?

Thanks!