Fix unit tests (#11199)

* Fix tests build issue on Windows

* Fix `Http digest authentication` 404 error

* Fix `libnest2d_tests` missing dlls on Windows

tests/fff_print/test_printgcode.cpp

@@ -1,3 +1,13 @@
+#ifdef WIN32
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+	#include <Windows.h>
+#endif
+
 #include <catch2/catch.hpp>
 
 #include "libslic3r/libslic3r.h"