feat: align Block trait

[rakita]

In most cases, we would not need a reference but concrete type. Some block types (gas, basefee) were changes to smaller types.

[codspeed-hq]

CodSpeed Performance Report

Merging #1957 will degrade performances by 2.47%

_{Comparing rakita/align_block_trait (615c3cf) with main (7d060e1)}

Summary

❌ 1 regressions
✅ 7 untouched benchmarks

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

Benchmarks breakdown

	Benchmark	main	rakita/align_block_trait	Change
❌	`precompile bench	ecrecover precompile`	195.2 µs	200.2 µs

[rakita]

This change does not touch precompile, it is a flaky test

[rakita]

This change does not touch precompile, it is a flaky test