Replace use of deprecated C Standard library headers in C++ code.

Change-Id: I9fa6630c7e4bdb2897df34d417635d8c7d8253bc
Signed-off-by: Tyler Chatow <tchatow@gmail.com>
diff --git a/aos/network/team_number.h b/aos/network/team_number.h
index 8effc27..b794309 100644
--- a/aos/network/team_number.h
+++ b/aos/network/team_number.h
@@ -1,8 +1,7 @@
 #ifndef AOS_NETWORK_TEAM_NUMBER_H_
 #define AOS_NETWORK_TEAM_NUMBER_H_
 
-#include <stdint.h>
-
+#include <cstdint>
 #include <optional>
 #include <string_view>