Fix compilation on GCC-13 (#443)

* Fix compilation on GCC-13

GCC-13 changes internal cstdint includes, and now files that uses
standart integer types should directly include cstdint header.

See: https://gcc.gnu.org/gcc-13/porting_to.html#header-dep-changes
Bug: https://bugs.gentoo.org/865117
Bug: https://bugs.gentoo.org/895440

* Convert line endings to Unix format

ixwebsocket/IXWebSocketTransport.cpp

@@ -45,7 +45,6 @@
 #include <cstdarg>
 #include <cstdlib>
 #include <sstream>
-#include <stdlib.h>
 #include <string.h>
 #include <string>
 #include <thread>