Include cstdint for GCC-13 (#245)

Include cstdint include for size_t

Author: toge

src/sql/ColumnType.h

@@ -2,6 +2,7 @@
 #define SQLPARSER_COLUMN_TYPE_H
 
 #include <ostream>
+#include <stdint.h>
 
 namespace hsql {
 enum class DataType {

src/sql/Expr.cpp

@@ -1,6 +1,9 @@
 #include "Expr.h"
+
+#include <stdint.h>
 #include <stdio.h>
 #include <string.h>
+
 #include "SelectStatement.h"
 
 namespace hsql {

src/sql/statements.cpp

@@ -1,4 +1,7 @@
 #include "statements.h"
+
+#include <stdint.h>
+
 #include "AlterStatement.h"
 #include "ImportExportOptions.h"
 

src/util/sqlhelper.cpp

@@ -1,8 +1,9 @@
-
 #include "sqlhelper.h"
+
 #include <iostream>
 #include <map>
 #include <sstream>
+#include <stdint.h>
 #include <string>
 
 namespace hsql {