chore: pin memtrack 1.6.1 and exec-harness 1.4.0

[adriencaccia]

Points the runner at memtrack v1.6.1, which fixes nested allocator stacks hijacked by uretprobes, and exec-harness v1.4.0, which emits Python and Node perf maps in memory mode so codspeed exec memory flamegraphs name interpreted frames.

Hashes verified against the published installers with GITHUB_ACTIONS=true cargo test all_pinned.

Refs COD-3803, which stays open for the runner v5.4.1 release this unblocks.

[greptile-apps]

Confidence Score: 5/5

[High impact] The PR appears safe to merge; no actionable issues were found.

Summary

Updates src/binary_pins.rs to use memtrack 1.6.1 and exec-harness 1.4.0, with new installer SHA-256 values.

• Download URLs and installer checks remain unchanged.
• No actionable issues found.

_{Reviews (1) · Last reviewed commit: "chore: pin memtrack 1.6.1 and exec-harne..." · Reviewed by Greptile}

[codspeed]

Merging this PR will not alter performance

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

✅ 31 untouched benchmarks
⏩ 6 skipped benchmarks¹

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_{Comparing cod-3803-release-runner-and-memtrack (769db24) with main (929a34c)}

Footnotes

1. 6 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩