fix: Code formatting

Author: muzaffarbhat07

tests/unit_test_lists.c

@@ -155,7 +155,7 @@ TEST_GROUP_RUNNER(btc_txn_helper_test) {
                 btc_txn_helper_verify_input_p2wpkh_in_p2sh);
   RUN_TEST_CASE(btc_txn_helper_test,
                 btc_txn_helper_verify_input_p2wpkh_in_p2sh_fail);
-  
+
   RUN_TEST_CASE(btc_txn_helper_test, btc_txn_helper_transaction_weight_legacy1);
   RUN_TEST_CASE(btc_txn_helper_test, btc_txn_helper_transaction_weight_legacy2);
   RUN_TEST_CASE(btc_txn_helper_test, btc_txn_helper_transaction_weight_segwit1);