fix: remove deprecated commands and post comments from file (#10)

Update action steps
* remove deprecated commands (https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/)
* post comments from file (https://github.com/peter-evans/create-or-update-comment/releases/tag/v2.1.0)

fix action naming (#3)

* rename environment variables
* change action naming

Github Action for automatic validation of DB migrations in a CI pipel…

…ine (#1)

* feat: use default inputs
* fail pipeline if response code is unsuccessful
* allow downloading artifacts
* provide migration details on failure

prepare response

fix entrypoint

fix entrypoint