Initial support for tags ✨

What's Changed

• Enhance UX for tag selection by @icereed in #5
• Add GitHub Actions workflow for building and pushing Docker images by @icereed in #6

Available with:

docker pull icereed/paperless-gpt:v0.1.0
# or
docker pull icereed/paperless-gpt:latest

Full Changelog: https://github.com/icereed/paperless-gpt/commits/v0.1.0