fix GCC 13 issues

GCC 13 has moved `uint*_t` family from being included in a default
include tree.  Explicitly add `#include <cstdint>` to give these types.

Also remove one useless `std::move`.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I3e69ff4d3aa4a52856fc57b8d8babd32693324ee
diff --git a/chassishandler.cpp b/chassishandler.cpp
index 0028592..de00a26 100644
--- a/chassishandler.cpp
+++ b/chassishandler.cpp
@@ -1441,7 +1441,7 @@
 void enclosureIdentifyLed(bool flag)
 {
     using namespace chassis::internal;
-    std::string connection = std::move(getEnclosureIdentifyConnection());
+    std::string connection = getEnclosureIdentifyConnection();
     auto msg = std::string("enclosureIdentifyLed(") +
                boost::lexical_cast<std::string>(flag) + ")";
     log<level::DEBUG>(msg.c_str());