[Tooling] Optimize CI Cache for Rust Builds

[p3ris0n]

Reward: 200 Points (Stellar Wave 5)

Description
Speed up CI pipeline execution times.

Acceptance Criteria
Implement aggressive sccache or optimized cargo caching in ci.yml.

[Code-Paragon]

@Code-Paragon has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hi @p3ris0n I am very experienced with CI pipelines, I’d love to work on this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Code-Paragon to this issue.

[drips-wave]

Congratulations, @Code-Paragon! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @Code-Paragon: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊