chore: remove unused workflow file

[michaelmalave]

Summary

This branch removes an unused Fig autocomplete publishing workflow and its invocation from the release pipeline to simplify post-release automation. Scope is limited to GitHub Actions workflow cleanup.

• Remove the standalone .github/workflows/publish-to-fig-autocomplete.yml workflow
• Update .github/workflows/create-cli-release.yml to delete the create-fig-autocomplete-pr reusable workflow job

Type of Change

• fix: Bug fix or issue (patch semvar update)
• feat: Introduces a new feature to the codebase (minor semvar update)
• perf: Performance improvement
• docs: Documentation only changes
• tests: Adding missing tests or correcting existing tests
• chore: Code cleanup tasks, dependency updates, or other changes

Verification

Confirmed only workflow cleanup changes are included and no runtime CLI code paths were modified.

Additional Context

• Breaking: none
• Risk: low; CI workflow-only changes
• Follow-up: if Fig autocomplete publishing is still needed, reintroduce it through the current release automation path