feat: Update generator logic to SDK v1.9.0

[eddie-knight]

No description provided.

[Copilot]

Pull Request Overview

This PR updates the generator logic to support SDK v1.9.0, migrating from the deprecated revanite-io/sci package to the newer ossf/gemara package while enhancing plugin generation capabilities.

• Updates SDK dependency from v1.5.0 to v1.8.0 and migrates to ossf/gemara v0.12.1
• Refactors plugin generation to use new catalog loading methods and assessment requirements processing
• Adds support for non-template file copying and YAML catalog output generation

Reviewed Changes

Copilot reviewed 4 out of 6 changed files in this pull request and generated 1 comment.

File	Description
go.mod	Updates dependencies to use ossf/gemara v0.12.1, privateer-sdk v1.8.0, and adds gopkg.in/yaml.v3 as direct dependency
cmd/generate-plugin.go	Refactors plugin generation logic to use new SDK methods, adds assessment requirements processing, and implements catalog file writing
TODO.md	Removes completed TODO item about logger debug output
ROADMAP.md	Removes entire roadmap file content

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}