fatal: Could not read from remote repository

I have the following action:

name: deploy:dokku

on:
    workflow_dispatch:

jobs:
    deploy:
        runs-on: ubuntu-latest
        steps:
            - name: Cloning repo
              uses: actions/checkout@v3.5.3
              with:
                  fetch-depth: 0

            - name: Deploy to Dokku
              uses: vitalyliber/dokku-github-action@v7.1
              with:
                  branch: main
                  git_remote_url: "ssh://dokku@radiofeed.app:22/radiofeed"
                  ssh_private_key: ${{ secrets.DOKKU_SSH_PRIVATE_KEY }}

This results in this error:

Warning: Unexpected input(s) 'branch', 'git_remote_url', 'ssh_private_key', valid inputs are ['entryPoint', 'args', 'private_key', 'public_key']
Run vitalyliber/dokku-github-action@v7.1
/usr/bin/docker run --name c9a4a5efe2434e44a4444da4a3fe102f2bc9b4_4c75f4 --label c9a4a5 --workdir /github/workspace --rm -e "INPUT_BRANCH" -e "INPUT_GIT_REMOTE_URL" -e "INPUT_SSH_PRIVATE_KEY" -e "INPUT_PRIVATE_KEY" -e "INPUT_PUBLIC_KEY" -e "HOME" -e "GITHUB_JOB" -e "GITHUB_REF" -e "GITHUB_SHA" -e "GITHUB_REPOSITORY" -e "GITHUB_REPOSITORY_OWNER" -e "GITHUB_REPOSITORY_OWNER_ID" -e "GITHUB_RUN_ID" -e "GITHUB_RUN_NUMBER" -e "GITHUB_RETENTION_DAYS" -e "GITHUB_RUN_ATTEMPT" -e "GITHUB_REPOSITORY_ID" -e "GITHUB_ACTOR_ID" -e "GITHUB_ACTOR" -e "GITHUB_TRIGGERING_ACTOR" -e "GITHUB_WORKFLOW" -e "GITHUB_HEAD_REF" -e "GITHUB_BASE_REF" -e "GITHUB_EVENT_NAME" -e "GITHUB_SERVER_URL" -e "GITHUB_API_URL" -e "GITHUB_GRAPHQL_URL" -e "GITHUB_REF_NAME" -e "GITHUB_REF_PROTECTED" -e "GITHUB_REF_TYPE" -e "GITHUB_WORKFLOW_REF" -e "GITHUB_WORKFLOW_SHA" -e "GITHUB_WORKSPACE" -e "GITHUB_ACTION" -e "GITHUB_EVENT_PATH" -e "GITHUB_ACTION_REPOSITORY" -e "GITHUB_ACTION_REF" -e "GITHUB_PATH" -e "GITHUB_ENV" -e "GITHUB_STEP_SUMMARY" -e "GITHUB_STATE" -e "GITHUB_OUTPUT" -e "RUNNER_OS" -e "RUNNER_ARCH" -e "RUNNER_NAME" -e "RUNNER_ENVIRONMENT" -e "RUNNER_TOOL_CACHE" -e "RUNNER_TEMP" -e "RUNNER_WORKSPACE" -e "ACTIONS_RUNTIME_URL" -e "ACTIONS_RUNTIME_TOKEN" -e "ACTIONS_CACHE_URL" -e GITHUB_ACTIONS=true -e CI=true -v "/var/run/docker.sock":"/var/run/docker.sock" -v "/home/runner/work/_temp/_github_home":"/github/home" -v "/home/runner/work/_temp/_github_workflow":"/github/workflow" -v "/home/runner/work/_temp/_runner_file_commands":"/github/file_commands" -v "/home/runner/work/radiofeed-app/radiofeed-app":"/github/workspace" c9a4a5:efe2434e44a4444da4a3fe102f2bc9b4
Setting up SSH directory
Saving SSH key
fatal: detected dubious ownership in repository at '/github/workspace'
Detect the project default branch: master or main
To add an exception for this directory, call:

    git config --global --add safe.directory /github/workspace
ssh: Could not resolve hostname : Name or service not known
Default is master
Disabling host key checking
Adding repository directory to the git global config as a safe directory
The deploy is starting
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

Manual dokku deployments and commands through SSH all work fine.

I'm wondering if the issue is with Unexpected input(s) 'branch', 'git_remote_url', 'ssh_private_key', so it's not reading those values?

dokku / github-action

fatal: Could not read from remote repository #58