Fix linting issue

src/rules/pip_install.rs

@@ -1,6 +1,6 @@
 use super::{match_rule_without_sudo, utils::match_rule_with_is_app, Rule};
 use crate::{cli::command::CrabCommand, shell::Shell};
-use regex::Regex;
+
 
 fn auxiliary_match_rule(command: &CrabCommand) -> bool {
     if let Some(output) = &command.output {