fixed MegaLinter error

sashingo · sashingo · commit b3aa11a8e6cf · 2025-02-23T23:17:30.000+09:00
diff --git a/PWGHF/Core/HfHelper.h b/PWGHF/Core/HfHelper.h
@@ -17,6 +17,8 @@
 #ifndef PWGHF_CORE_HFHELPER_H_
 #define PWGHF_CORE_HFHELPER_H_
 
+#include <vector>
+
 #include <Math/GenVector/Boost.h>
 #include <Math/Vector4D.h>
 #include <TPDGCode.h>
