Use lock guards for mutex locking

src/Utils/Hooking.cpp

@@ -136,11 +136,10 @@ namespace Utils
 
 	Hook* Hook::Install(bool unprotect, bool keepUnportected)
 	{
-		Hook::StateMutex.lock();
+		std::lock_guard<std::mutex> _(Hook::StateMutex);
 
 		if (!Hook::Initialized || Hook::Installed)
 		{
-			Hook::StateMutex.unlock();
 			return this;
 		}
 
@@ -159,8 +158,6 @@ namespace Utils
 
 		FlushInstructionCache(GetCurrentProcess(), Hook::Place, sizeof(Hook::Buffer));
 
-		Hook::StateMutex.unlock();
-
 		return this;
 	}