Address some compilation warnings with GCC latest (#5796)

* Refs #23110: Add cstdint header for uint8_t

Signed-off-by: Mario Dominguez <[email protected]>

* Refs #23110: Remove unused using

Signed-off-by: Mario Dominguez <[email protected]>

* Refs #23110: Add missing cstdint to more headers

Signed-off-by: cferreiragonz <[email protected]>

---------

Signed-off-by: Mario Dominguez <[email protected]>
Signed-off-by: cferreiragonz <[email protected]>
Co-authored-by: cferreiragonz <[email protected]>
(cherry picked from commit e1524ac)

# Conflicts:
#	src/cpp/fastdds/topic/DDSSQLFilter/DDSFilterValue.hpp
#	src/cpp/rtps/reader/BaseReader.cpp

Author: Mario-DL

src/cpp/fastdds/topic/DDSSQLFilter/DDSFilterCompoundCondition.hpp

@@ -19,6 +19,7 @@
 #ifndef _FASTDDS_TOPIC_DDSSQLFILTER_DDSFILTERCOMPOUNDCONDITION_HPP_
 #define _FASTDDS_TOPIC_DDSSQLFILTER_DDSFILTERCOMPOUNDCONDITION_HPP_
 
+#include <cstdint>
 #include <memory>
 
 #include "DDSFilterCondition.hpp"

src/cpp/fastdds/topic/DDSSQLFilter/DDSFilterPredicate.hpp

@@ -19,6 +19,7 @@
 #ifndef _FASTDDS_TOPIC_DDSSQLFILTER_DDSFILTERPREDICATE_HPP_
 #define _FASTDDS_TOPIC_DDSSQLFILTER_DDSFILTERPREDICATE_HPP_
 
+#include <cstdint>
 #include <memory>
 
 #include "DDSFilterCondition.hpp"

src/cpp/fastdds/topic/DDSSQLFilter/DDSFilterValue.hpp

@@ -19,6 +19,12 @@
 #ifndef _FASTDDS_TOPIC_DDSSQLFILTER_DDSFILTERVALUE_HPP_
 #define _FASTDDS_TOPIC_DDSSQLFILTER_DDSFILTERVALUE_HPP_
 
+<<<<<<< HEAD
+=======
+#include <fastcdr/cdr/fixed_size_string.hpp>
+
+#include <cstdint>
+>>>>>>> e1524ac9 (Address some compilation warnings with GCC latest (#5796))
 #include <memory>
 #include <regex>