main.cpp: fix typo in gpu-profile CLI argument

main.cpp uses "profile-gpu" in one place, whereas all other occurrences in the
codebase use "gpu-profile". This fixes the gpu profiler not being configurable
via CLI.

Author: gg-yb

main/main.cpp

@@ -1818,7 +1818,7 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
 		} else if (arg == "--editor-pseudolocalization") {
 			editor_pseudolocalization = true;
 #endif // TOOLS_ENABLED
-		} else if (arg == "--profile-gpu") {
+		} else if (arg == "--gpu-profile") {
 			profile_gpu = true;
 		} else if (arg == "--disable-crash-handler") {
 			OS::get_singleton()->disable_crash_handler();