lint: clippy rules or_fun_call (#2561)

Co-authored-by: houseme <housemecn@gmail.com>

crates/e2e_test/src/kms/test_runner.rs

@@ -450,11 +450,7 @@ impl KMSTestSuite {
         if failed > 0 {
             warn!("❌ Failing tests:");
             for result in results.iter().filter(|r| !r.success) {
-                warn!(
-                    "  - {}: {}",
-                    result.test_name,
-                    result.error_message.as_ref().unwrap_or(&"Unknown error".to_string())
-                );
+                warn!("  - {}: {}", result.test_name, result.error_message.as_deref().unwrap_or("Unknown error"));
             }
         }
     }

crates/e2e_test/src/reliant/conditional_writes.rs

@@ -259,7 +259,7 @@ async fn test_conditional_multi_part_upload() -> Result<(), Box<dyn std::error::
 
     let upload_id = initiate_response
         .upload_id()
-        .ok_or(std::io::Error::other("No upload ID returned"))?;
+        .ok_or_else(|| std::io::Error::other("No upload ID returned"))?;
 
     // Upload parts
     for part_number in 1..=num_parts {
@@ -277,7 +277,7 @@ async fn test_conditional_multi_part_upload() -> Result<(), Box<dyn std::error::
 
         let part_etag = upload_part_response
             .e_tag()
-            .ok_or(std::io::Error::other("Do not have etag"))?
+            .ok_or_else(|| std::io::Error::other("Do not have etag"))?
             .to_string();
 
         let completed_part = CompletedPart::builder().part_number(part_number).e_tag(part_etag).build();

crates/e2e_test/src/reliant/node_interact_test.rs

@@ -154,7 +154,7 @@ async fn walk_dir() -> Result<(), Box<dyn Error>> {
             match response.next().await {
                 Some(Ok(resp)) => {
                     if !resp.success {
-                        println!("{}", resp.error_info.unwrap_or("".to_string()));
+                        println!("{}", resp.error_info.unwrap_or_else(|| "".to_string()));
                     }
                     let entry = serde_json::from_str::<MetaCacheEntry>(&resp.meta_cache_entry)
                         .map_err(|_e| std::io::Error::other(format!("Unexpected response: {response:?}")))