Fix unused debugToken_ in release mode (software-mansion#3909)

## Summary

This PR fixes a warning that `debugToken_` field is unused in release mode after software-mansion#3745  which gets escalated to a compile error thanks to `-Werror`.

## Test plan

Check if Example app compiles in release mode.

Author: tomekzaw

Common/cpp/ReanimatedRuntime/ReanimatedHermesRuntime.h

@@ -122,9 +122,11 @@ class ReanimatedHermesRuntime
  private:
   std::unique_ptr<facebook::hermes::HermesRuntime> runtime_;
   ReanimatedReentrancyCheck reentrancyCheck_;
+#if HERMES_ENABLE_DEBUGGER
 #if REACT_NATIVE_MINOR_VERSION >= 71
   facebook::hermes::inspector::chrome::DebugSessionToken debugToken_;
-#endif
+#endif // REACT_NATIVE_MINOR_VERSION >= 71
+#endif // HERMES_ENABLE_DEBUGGER
 };
 
 } // namespace reanimated