fix(deps): update dependency xyz.jpenilla:squaremap-api to v1.2.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
xyz.jpenilla:squaremap-api	1.2.0 -> 1.2.1

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Release Notes

jpenilla/squaremap (xyz.jpenilla:squaremap-api)

### [`v1.2.1`](https://togithub.com/jpenilla/squaremap/releases/tag/v1.2.1): squaremap 1.2.1 [Compare Source](https://togithub.com/jpenilla/squaremap/compare/v1.2.0...v1.2.1) #### Changelog ##### Changed - Update for Minecraft 1.20.2 - Don't delete icons on unregister ([#​115](https://togithub.com/jpenilla/squaremap/issues/115)) - Consider below zero retrogen target status for chunk generated check ([#​117](https://togithub.com/jpenilla/squaremap/issues/117)) - Allows pre-1.18 chunks to be rendered without being re-upgraded to full status ##### Fixed - forge: Missing include for plain adventure serializer ([#​118](https://togithub.com/jpenilla/squaremap/issues/118)) ##### Where are Forge builds? - Starting with 1.20.2, squaremap will drop support for [MinecraftForge](https://togithub.com/MinecraftForge/MinecraftForge) and will instead support [NeoForge](https://togithub.com/neoforged/NeoForge). Once NeoForge is available for 1.20.2 `squaremap-forge` will be updated to support it.

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