Add missing header

Compilation was failing on g++-12, due to missing header in 1 file.

Testing done:
- Compilation works on g++-12

Signed-off-by: Szymon Dompke <szymon.dompke@intel.com>
Change-Id: I658d9ff70dc02bcb541c6b42dff4e54b92a9e60f
diff --git a/src/utils/circular_vector.hpp b/src/utils/circular_vector.hpp
index be13873..f5e283c 100644
--- a/src/utils/circular_vector.hpp
+++ b/src/utils/circular_vector.hpp
@@ -1,3 +1,4 @@
+#include <cstddef>
 #include <vector>
 
 template <class T>