Fix array out of bounds read.

src/modules/AdminModule.cpp

@@ -350,7 +350,7 @@ void AdminModule::handleGetModuleConfigResponse(const meshtastic_MeshPacket &mp,
         if (devicestate.node_remote_hardware_pins[i].node_num == 0 || !devicestate.node_remote_hardware_pins[i].has_pin) {
             continue;
         }
-        for (uint8_t j = 0; j < sizeof(r->get_module_config_response.payload_variant.remote_hardware.available_pins); j++) {
+        for (uint8_t j = 0; j < r->get_module_config_response.payload_variant.remote_hardware.available_pins_count; j++) {
             auto availablePin = r->get_module_config_response.payload_variant.remote_hardware.available_pins[j];
             if (i < devicestate.node_remote_hardware_pins_count) {
                 devicestate.node_remote_hardware_pins[i].node_num = mp.from;