ci: update canbench to 0.1.12

[maksymar]

This PR updates CI to use canbench v0.1.12.

CSV report in google sheets.
Minor changes in measurements probably due to canbench changes in between versions 0.1.11 and 0.1.12.

Known issue

• Inconsistent summary reporting between canbench binary and posting scripts canbench#106
• Will be fixed with the follow-up PRs

[github-actions]

canbench 🏋 (dir: .) ceed723 2025-05-13 11:48:07 UTC

ℹ️ No significant performance changes detected 👍
✅ ./canbench_results.yml is up to date

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Summary:
  instructions:
    counts:   [total 124 | new 0 | improved 4 | regressed 1 | unchanged 119] 🟢🔴
    change:   [min -41.08 M | med -45.30 K | max +10.20 M]
    change %: [min -2.90% | med -0.01% | max +2.95%]

  heap_increase:
    counts:   [total 124 | new 0 | improved 0 | regressed 1 | unchanged 123] 🔴
    change:   [min 0 | med 0 | max +1]
    change %: [min 0.00% | med 0.00% | max 0.00%]

  stable_memory_increase:
    counts:   [total 124 | new 0 | improved 0 | regressed 0 | unchanged 124]
    change:   [min 0 | med 0 | max 0]
    change %: [min 0.00% | med 0.00% | max 0.00%]

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