Support Minecraft PC 1.21.1

[github-actions]

A new Minecraft Java Edition version is available (as of 2024-08-08T12:24:45+00:00), version 1.21.1

Official Changelog

• https://feedback.minecraft.net/hc/en-us/sections/360001186971-Release-Changelogs

Protocol Details

(I will close this issue automatically if "1.21.1" is added to data/pc/common/versions.json on "master")

Name	1.21.1
Protocol ID	767
Release Date	2024-08-08T12:24:45+00:00
Release Type	release
Data Version	3955
Java Version	21

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🤖 I am a bot, I check for updates every 2 hours without a trigger. You can close this issue to prevent any further updates.

[rom1504]

done