Feat: Add Str(Cow<'static, str>) to InvalidTransaction error enum

[developeruche]

Closes #2995

[rakita]

waiting for ci

[codspeed-hq]

CodSpeed Performance Report

Merging #2998 will degrade performances by 4.6%

_{Comparing developeruche:feat/str-cow-error (0a3d77b) with main (591ee99)}

Summary

❌ 1 regression
✅ 172 untouched

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

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
❌	snailtracer-inspect	386 ms	404.6 ms	-4.6%

[rakita]

regresion is not related to the change