fix(opatIO): brought changes from main related to gcc13 compliance

src/opatIO/private/opatIO.cpp

@@ -10,6 +10,7 @@
 #include <cmath>
 #include <limits>
 #include <deque>
+#include <cstdint>
 #include "picosha2.h"
 
 // Function to check system endianness

src/opatIO/public/opatIO.h

@@ -8,6 +8,7 @@
 #include <deque>
 #include <map>
 #include <utility>
+#include <cstdint>
 
 /**
  * @brief Structure to hold the header information of an OPAT file.