Fix missing C++ includes

Author: vkucera

PWGJE/Tasks/jetOutlierQA.cxx

@@ -36,6 +36,8 @@
 #include <algorithm>
 #include <cmath>
 #include <cstddef>
+#include <map>
+#include <set>
 #include <string>
 #include <type_traits>
 #include <vector>

PWGJE/Tasks/jetSubstructure.cxx

@@ -46,10 +46,12 @@
 
 #include <cmath>
 #include <cstdint>
+#include <string>
 #include <utility>
 #include <vector>
 
 #include <math.h>
+
 using namespace o2;
 using namespace o2::framework;
 using namespace o2::framework::expressions;