bug: High CPU Temperature observed on Heavy-config BlueROV2 with BlueOS installed on Navigator Flight Controller

### Bug description

**Background:**
We recently performed a hardware upgrade on our Heavy BlueROV2, replacing the existing hardware with BR Navigator Flight Navigator, accompanied by an installation of BlueOS 1.0.0. Following the hardware upgrade, we updated BlueOS to version 1.1.0-beta.17 and have been utilizing this configuration since then.

**Problem:**
In the course of regular usage, we have started observing an unexpected and concerning behavior related to the CPU temperature of the BlueROV2. Even when the vehicle is at idle (~20% CPU usage) and placed on a bench, the reported CPU temperature gradually rises to approximately 70°C and remains stable around this value. I even upgraded to 1.1.0-beta.28 but issue persists.

1. Is the temperature rise expected?
2. Is there any temperature limit by BlueOS that will result in throttling RPi4 and the communication with Navigator?

### Steps to reproduce

1. Take the Electronics Enclosure with Navigator Flight Controller, BlueOS can be either 1.1.0-beta.17 or 1.1.0-beta.28.
2. Turn on using bench top power supply or BR battery pack.
3. Wait for about 20 minutes, and CPU temperature will reach around 60 to 70 °C. This will be a gradual increase and not a sudden change.

### Primary pain point(s)

_No response_

### Prerequisites

- [X] I have checked to make sure that a similar request has not already been filed or fixed.