🎈 Add version 1.21.11

[rom1504bot]

This automated PR sets up the relevant boilerplate for Minecraft version 1.21.11.

Links:

• Issue: Support Minecraft PC 1.21.11 minecraft-data#1143
• PR: 🎈 Add Minecraft pc 1.21.11 data minecraft-data#1144

If the PR is passing, it will automatically send the generated artifacts to PrismarineJS/minecraft-data#1144.

If the PR is not passing:

• You can help contribute to this PR by opening a PR against this bump branch instead of main.

[github-actions]

Job Summary for Gradle

Java CI with Gradle :: build

Gradle Root Project	Requested Tasks	Gradle Version	Build Outcome	Build Scan®
minecraft-data-generator	:mc:1.21.11:runServer	8.7	❌

[extremeheat]

@copilot please make necessary changes to this PR to fix the compilation/extraction issues on 1.21.11. The errors arise from symbol changes in .11 from .9 / .10, eg

/home/runner/work/minecraft-data-generator/minecraft-data-generator/mc/1.21.11/src/main/java/dev/u9g/minecraftdatagenerator/generators/EntitiesDataGenerator.java:8: error: cannot find symbol
> Task :mc:1.21.11:compileJava
import net.minecraft.resources.ResourceLocation;
                              ^
  symbol:   class ResourceLocation
  location: package net.minecraft.resources
/home/runner/work/minecraft-data-generator/minecraft-data-generator/mc/1.21.11/src/main/java/dev/u9g/minecraftdatagenerator/generators/EntitiesDataGenerator.java:18: error: cannot find symbol
import net.minecraft.world.entity.animal.WaterAnimal;

Check minecraft source code and diff for changes we need to apply

[Copilot]

@extremeheat I've opened a new pull request, #65, to work on those changes. Once the pull request is ready, I'll request review from you.