update txpool max block gas limit

[mattsse]

Describe the feature

currently the block gas limit is fixed

reth/crates/transaction-pool/src/pool/txpool.rs

Lines 920 to 921 in 94c15c0

	/// The max gas limit of the block
	block_gas_limit: u64,

and is used to enforce:

reth/crates/transaction-pool/src/pool/txpool.rs

Lines 1336 to 1337 in 94c15c0

	if transaction.gas_limit() > self.block_gas_limit {
	return Err(InsertErr::TxGasLimitMoreThanAvailableBlockGas {

we need to update this value to the new tip's gas limit:

reth/crates/transaction-pool/src/traits.rs

Lines 634 to 635 in 94c15c0

	/// Hash of the tip block.
	pub new_tip: &'a SealedBlock,

when we update the pool:

reth/crates/transaction-pool/src/traits.rs

Line 447 in 94c15c0

fn on_canonical_state_change(&self, update: CanonicalStateUpdate<'_>);

@greged93

ref #10985

Additional context

No response

[greged93]

will work on this next then!