perf(tx-pool): Optimize batch tx validation by separating checks

[yongkangc]

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closes: https://github.com/paradigmxyz/reth/issues/18527

This PR optimizes batch transaction validation by refactoring the TransactionValidator trait.

The validation process is now split into two distinct steps: validate_transaction_stateless and validate_transaction_stateful.

TheTransactionValidationTaskExecutor now

1. runs stateless checks on all transactions first
2. uses a single state provider to perform stateful validation only on those that pass, minimizin state access.

[yongkangc]

hey @klkvr just did an initial draft to see if this is something u had in mind?

[yongkangc]

hey @klkvr just addressed your comments in the PR. Sorry dropped the ball on this, let me know what u think