feat: optimize RLP decode

[ClementWalter]

Feature Request

Describe the Feature Request

1. Add some more real tx that costs a lot
2. Fund bottlenecks with profile-cairo
3. Optimize

Related Code

https://github.com/kkrt-labs/kakarot/blob/main/tests/utils/constants.py https://github.com/kkrt-labs/kakarot/blob/main/tests/src/utils/test_rlp.py

If the feature request is approved, would you be willing to submit a PR? Yes

/ No (Help can be provided if you need assistance submitting a PR)

### Tasks
- [ ] https://github.com/kkrt-labs/kakarot/issues/1092