Bumps Python version because it refuses to work (cmss13-devs#6654)

# About the pull request

Python some reason refuses to run scripts using 3.7 now. This bumps it
to version TG uses when they first introduced maplint.

**Of note it may be necessary for contributors to run either
bootstrap\python.bat or tools\hooks\install.bat to have their tools
working again.**

# Explain why it's good for the game

Fixes 

![image](https://github.com/cmss13-devs/cmss13/assets/76988376/25e45723-9183-452b-9c78-63f9bf35a45f)

# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Hooks install: 

![image](https://github.com/cmss13-devs/cmss13/assets/76988376/5a770e0c-7383-4dc5-b97e-cd5f3ea92d83)

</details>


# Changelog

No player facing changes.