feat: add subscription stream function for transaction receipts

[futreall]

Implements transaction_receipts_stream method in EthPubSub similar to new_headers_stream.
Adds build_convert_receipt_inputs helper function in rpc-convert for reusability.
Prep work for alloy-rs/alloy#2974.

Closes #19055

[mattsse]

cool, a few suggestions

[futreall]

@mattsse re point 4: should I wire this into the match statement now even though SubscriptionKind::TransactionReceipts doesn't exist yet in alloy? Or is the current approach with separate impl block fine until alloy 2974 lands?

[mattsse]

few more nits and q for @klkvr

[mattsse]

@klkvr thoughts on this

whould we perhaps make this a native fn of RecoveredBlock ?

[klkvr]

yep sgtm, thoughConvertReceiptInput::from_block_and_receipts might be eaiser here because ConvertReceiptInput is RPC-only type

also I would prefer this to be re-used in

reth/crates/rpc/rpc-eth-api/src/helpers/block.rs

Lines 126 to 157 in 447394f

	let inputs = block
	.transactions_recovered()
	.zip(Arc::unwrap_or_clone(receipts))
	.enumerate()
	.map(|(idx, (tx, receipt))| {
	let meta = TransactionMeta {
	tx_hash: *tx.tx_hash(),
	index: idx as u64,
	block_hash,
	block_number,
	base_fee,
	excess_blob_gas,
	timestamp,
	};
	let cumulative_gas_used = receipt.cumulative_gas_used();
	let logs_len = receipt.logs().len();
	let input = ConvertReceiptInput {
	tx,
	gas_used: cumulative_gas_used - gas_used,
	next_log_index,
	meta,
	receipt,
	};
	gas_used = cumulative_gas_used;
	next_log_index += logs_len;
	input
	})
	.collect::<Vec<_>>();

[futreall]

@mattsse separate PR for the refactor or include here?

[mattsse]

@futreall let's do a separate one for this