Error: Command failed: git push heroku HEAD:refs/heads/main --force fatal: 'heroku' does not appear to be a git repository fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists.

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, akhileshns/heroku-deploy@v3.12.12. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/