- Improve the installation process for Gitea and PostgreSQL.
- Change the location of the Gitea config file to `/etc`.
- Add a health check for the PostgreSQL container.
- Ensure the Gitea user is created only if it doesn't exist.
- Add a restart command for Gitea to ensure it starts after.
- Improve error handling during user creation.
- Simplify PostgreSQL configuration in Gitea actions.