fix(benchmark): correct pyright and ruff cache clearing paths

[w-martin]

Summary

• Fixes fix(benchmark): pyright and ruff cache clearing targets wrong paths #2
• pyright analysis cache is at ~/.cache/pyright/ (not .pyright/ in project) — now cleared correctly
• ruff cache bypassed via --no-cache flag on invocation (more reliable than clearing a path that may not exist)
• ty: also clears ~/.cache/ty/ as belt-and-suspenders alongside .ty/ in project
• Before this fix, pyright timed runs could benefit from a warm cache, underestimating cold-start analysis time

Test plan

• ruff ToolInfo cmd includes --no-cache
• ~/.cache/pyright/ is in cache_dirs
• Benchmark runs without error on small corpus (requires maturin develop)

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