Fix Docker runtime execution

[risu729]

Summary

• switch the Dockerfile to a multi-stage build so scraping runs when the container starts rather than during docker build
• keep the runtime image slim and include the SQL files plus runtime SSL/CA dependencies
• keep the builder image on rust:1.80

Verification

• git push -u origin fix/docker-build-command
• docker build -t spooderman:test . currently fails because this repository uses Rust 2024 edition and Cargo 1.80 does not support it yet

Notes

• The Dockerfile no longer depends on HASURAGRES_URL or HASURAGRES_API_KEY being present at image build time.
• With the builder tag reverted to rust:1.80, the image still needs a toolchain update before docker build can succeed.

[risu729]

Closing this in favor of removing the unused/broken Docker/CD workflow instead of trying to fix it here.