Swap lines order in get_final_and_active_data_entry

[aoudiamoncef]

        let lock = self.execution_state.read();
        let mut result = Vec::with_capacity(input.len());

Swap the order of those 2 lines to minimize lock duration.

Originally posted by @damip in #3489 (comment)

[damip]

not urgent, can be done for testnet 21