Allow cognitive complexity lint for tests

Author: TonalidadeHidrica

src/internal_math.rs

@@ -227,6 +227,7 @@ pub(crate) fn primitive_root(m: i32) -> i32 {
 #[cfg(test)]
 mod tests {
     #![allow(clippy::unreadable_literal)]
+    #![allow(clippy::cognitive_complexity)]
     use crate::internal_math::{inv_gcd, is_prime, pow_mod, primitive_root, safe_mod, Barrett};
     use std::collections::HashSet;