fix(bb): push missing q_5 in QArith3Gate test to unbreak nightly debug build

Author: AztecBot

barretenberg/cpp/src/barretenberg/circuit_checker/ultra_circuit_builder_arithmetic.test.cpp

@@ -549,6 +549,7 @@ TEST_F(UltraCircuitBuilderArithmetic, QArith3Gate)
         builder.blocks.arithmetic.q_2().emplace_back(q_2);
         builder.blocks.arithmetic.q_3().emplace_back(q_3);
         builder.blocks.arithmetic.q_4().emplace_back(q_4);
+        builder.blocks.arithmetic.q_5().emplace_back(0);
         builder.blocks.arithmetic.q_c().emplace_back(q_c);
         builder.blocks.arithmetic.set_gate_selector(3);
         builder.check_selector_length_consistency();
@@ -561,6 +562,7 @@ TEST_F(UltraCircuitBuilderArithmetic, QArith3Gate)
         builder.blocks.arithmetic.q_2().emplace_back(0);
         builder.blocks.arithmetic.q_3().emplace_back(0);
         builder.blocks.arithmetic.q_4().emplace_back(0);
+        builder.blocks.arithmetic.q_5().emplace_back(0);
         builder.blocks.arithmetic.q_c().emplace_back(0);
         builder.blocks.arithmetic.set_gate_selector(1);
         builder.check_selector_length_consistency();