clang-tidy: Enable modernize-deprecated-headers check

Some headers from C library were deprecated in C++ and are no
longer welcome in C++ codebases. Some have no effect in C++ [1].

[1]: https://releases.llvm.org/13.0.1/tools/clang/tools/extra/docs/clang-tidy/checks/modernize-deprecated-headers.html

Change-Id: Ia3b1df10175e2e661c8fffb82e357c9db81b2e9c
Signed-off-by: Pavithra Barithaya <pavithrabarithaya07@gmail.com>
diff --git a/libpldmresponder/pdr.hpp b/libpldmresponder/pdr.hpp
index ea12655..edd8810 100644
--- a/libpldmresponder/pdr.hpp
+++ b/libpldmresponder/pdr.hpp
@@ -3,7 +3,7 @@
 #include "common/utils.hpp"
 #include "libpldmresponder/pdr_utils.hpp"
 
-#include <stdint.h>
+#include <cstdint>
 
 namespace pldm
 {