[libc] Missing include in RPC test

Author: jhuber6

libc/test/integration/startup/gpu/rpc_stream_test.cpp

@@ -12,6 +12,7 @@
 #include "src/__support/integer_to_string.h"
 #include "src/string/memory_utils/inline_memcmp.h"
 #include "src/string/memory_utils/inline_memcpy.h"
+#include "src/string/memory_utils/inline_memset.h"
 #include "src/string/string_utils.h"
 #include "test/IntegrationTest/test.h"