chore(deps): update rust crate proc-macro2 to 1.0.81

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
proc-macro2	workspace.dependencies	patch	1.0.80 -> 1.0.81

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Release Notes

dtolnay/proc-macro2 (proc-macro2)

v1.0.81

Compare Source

• Documentation improvements

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Configuration

📅 Schedule: Branch creation - "before 9am on monday" in timezone Europe/Gibraltar, Automerge - At any time (no schedule defined).

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♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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[codspeed-hq]

CodSpeed Performance Report

Merging #2551 will degrade performances by 6.73%

_{Comparing renovate/proc-macro2-1.x (e0bcbc1) with main (edf02c1)}

Summary

❌ 1 regressions
✅ 92 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	renovate/proc-macro2-1.x	Change
❌	big5-added.json[cached]	2.1 ms	2.3 ms	-6.73%