fix: parallelize ci.yml steps with depends_on (#1052)
Add depends_on declarations so independent CI steps run in parallel.
Steps needing submodules (foundry-suite, contracts-local-fork,
evolution-tests, node-quality) wait for bootstrap-deps; lightweight
checks (single-package-manager, validate-evolution-patch,
optimizer-not-mutated, transpiler-tests) start immediately.
Critical path: bootstrap-deps (50s) + max(node-quality 400s) ≈ 450s
(was ~630s sequential).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>