ignore integer_arithmetic clippy

src/main.rs

@@ -26,7 +26,8 @@ This project used [rust-cli-boilerplate](https://github.com/ssokolow/rust-cli-bo
     clippy::float_arithmetic,
     clippy::implicit_return,
     clippy::filter_map,
-    clippy::wildcard_imports
+    clippy::wildcard_imports,
+    clippy::integer_arithmetic
 )]
 
 #[macro_use]