fix(config): set max of limit_commits to the number of commits (#140)

git-cliff/src/lib.rs

@@ -148,7 +148,9 @@ fn process_repository<'a>(
 		args.exclude_path.clone(),
 	)?;
 	if let Some(commit_limit_value) = config.git.limit_commits {
-		commits = commits.drain(..commit_limit_value).collect();
+		commits = commits
+			.drain(..commits.len().min(commit_limit_value))
+			.collect();
 	}
 
 	// Update tags.