Atmos sprite update (shiptest-ss13#2136)

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## About The Pull Request
Updates the sprites for the atmos firesuit, inhand fireaxe, and fireaxe
cabinet to fit in with the rest of the engineering sprites. Also,
fireaxe item sprite is no longer upside down when unwielded.

![image](https://github.com/shiptest-ss13/Shiptest/assets/93578146/24f75111-dd9c-42f5-b35d-e52e53ad03fa)

![image](https://github.com/shiptest-ss13/Shiptest/assets/93578146/93b1e744-f0b9-4119-9142-17e5a664ea87)

Sprites are from tgstation/tgstation#72736 and tgstation/tgstation#65199

## Why It's Good For The Game
Makes atmos firesuit and axe sprites fit in with the newer engineering
sprites, also I think it looks nice.

## Changelog

:cl:
imageadd: updates some atmos sprites to fit in with the rest of
engineering
/:cl:

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