Update noir-projects/aztec-nr/aztec/src/test/helpers/test_environment.nr

Co-authored-by: Jan Beneš <janbenes1234@gmail.com>

noir-projects/aztec-nr/aztec/src/test/helpers/test_environment.nr

@@ -15,7 +15,7 @@ use protocol_types::constants::PUBLIC_DISPATCH_SELECTOR;
 use protocol_types::traits::Packable;
 
 // This is the first nullifier emitted from the TXe. It is an arbitrary number assigned in the TXe that is
-// larger than the first prefilled subtree of the nullifier tree. We use know FIRST_NULLIFIER_EMITTED_IN_TXE exists
+// larger than the first prefilled subtree of the nullifier tree. We know FIRST_NULLIFIER_EMITTED_IN_TXE exists
 // because the TXe creates deterministic first nullifiers if no side-effects are emitted.
 pub global FIRST_NULLIFIER_EMITTED_IN_TXE: Field = 6969 + 1;