postprocessing: segmentation: add missing header

When compiling with gcc15, compiliation fails due to undeclared
uint8_t type, it requires <cstdint> header to be present.

This change adds this missing header.

Signed-off-by: Gyorgy Sarvari <[email protected]>

Author: OldManYellsAtCloud

post_processing_stages/segmentation.hpp

@@ -7,6 +7,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <string>
 #include <vector>