avoid writing to GH_OUT in more tests

Author: 2bndy5

cpp-linter-lib/src/run.rs

@@ -142,10 +142,12 @@ pub async fn run_main(args: Vec<String>) -> i32 {
 
 #[cfg(test)]
 mod test {
+    use std::env;
     use super::run_main;
 
     #[tokio::test]
     async fn run() {
+        env::remove_var("GITHUB_OUTPUT"); // avoid writing to GH_OUT in parallel-running tests
         assert_eq!(
             run_main(vec![
                 "cpp-linter".to_string(),
@@ -162,6 +164,7 @@ mod test {
 
     #[tokio::test]
     async fn run_version_command() {
+        env::remove_var("GITHUB_OUTPUT"); // avoid writing to GH_OUT in parallel-running tests
         assert_eq!(
             run_main(vec!["cpp-linter".to_string(), "version".to_string()]).await,
             0
@@ -170,6 +173,7 @@ mod test {
 
     #[tokio::test]
     async fn run_force_debug_output() {
+        env::remove_var("GITHUB_OUTPUT"); // avoid writing to GH_OUT in parallel-running tests
         assert_eq!(
             run_main(vec![
                 "cpp-linter".to_string(),
@@ -185,6 +189,7 @@ mod test {
 
     #[tokio::test]
     async fn run_bad_version_input() {
+        env::remove_var("GITHUB_OUTPUT"); // avoid writing to GH_OUT in parallel-running tests
         assert_eq!(
             run_main(vec![
                 "cpp-linter".to_string(),