CI/CD pipeline for docker image

[JackGilmore]

Is your feature request related to a problem? Please describe.

The Docker image for scraping is built at runtime when the pipeline is ran. We can speed up this process by auto-building the Docker image whenever the repository is updated, and then set up the pipeline to use the published image.

Describe the solution you'd like

• CI/CD GitHub Actions pipeline that runs on push to main
• Auto-increment version whenever the image is published
• Host image on <ghcr.io> GitHub Packages

Describe alternatives you've considered

None

Additional context

None