ci: skip project builds for static checks

[afourniernv]

What

Updates the Ruff and mypy jobs to install the locked development dependencies without installing the local Switchyard project. Both tools then run without synchronizing the environment a second time.

Why

Ruff and mypy inspect the source tree and do not need the installed Switchyard package. The existing setup builds the local Maturin/PyO3 project before each check. In a clean local control run with dependencies cached, that build took about two minutes.

--no-install-project skips the local project while retaining its dependencies. --no-sync prevents uv run from synchronizing again and installing the project anyway. Relay uses the same pairing.

How tested

• UV_PYTHON=3.12 uv sync --locked --no-install-project
• UV_PYTHON=3.12 uv run --no-sync ruff check .
• UV_PYTHON=3.12 uv run --no-sync mypy switchyard
• Confirmed nemo-switchyard remained uninstalled after both checks
• Parsed .github/workflows/ci.yml as YAML
• git diff --check

No live provider tests were run because this only changes setup for static-analysis jobs.

Notes for reviewers

This changes four workflow lines. The Python test, Rust, and package smoke-test jobs continue to install Switchyard normally. No product code, dependencies, lockfile, or public APIs change.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between cb98af0 and 9e625a4.

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• .github/workflows/ci.yml

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Walkthrough

The CI workflow now synchronizes locked dependencies without installing the project. The lint and typecheck jobs run Ruff and mypy without additional synchronization.

Changes

CI tool synchronization

Layer / File(s)	Summary
Synchronize dependencies before checks .github/workflows/ci.yml	The lint and typecheck jobs use uv sync --locked --no-install-project. Ruff and mypy run with uv run --no-sync.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: ⚪ Minimal · up to 9e625

Static checks now avoid the unnecessary local project build while retaining locked Ruff and mypy environments. No merge-blocking production or product behavior risk is evident.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main CI change: static checks skip local project builds.

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_{A rabbit checks the tools in line
Locked dependencies make them shine
Ruff hops first with steady feet
Mypy follows, quick and neat
No project install slows the beat}

_{Comment @coderabbitai help to get the list of available commands.}

[bhuvan002]

LGTM, thanks!