Instead of duplicating test logic in both the CI and the Makefile, I made the CI call the Makefile. Also, updated `make docs` so it dynamically pulls the module name from `go list -m`.
## Description
The current CI workflow was auto-generated by Claude, and is really not intuitive. Fixing it up to make it work better.
- Add names for jobs in workflow.
- Rename workflow to `ci.yml`.
- Added `go mod tidy` as a tasks in the `lint` job.
### Decisions
- Chose not to use emojis for workflow or job names. While they look nice, they are unprofessional, and harder to `grep`.
Reviewed-on: #3
Co-authored-by: M.V. Hutz <git@maximhutz.me>
Co-committed-by: M.V. Hutz <git@maximhutz.me>