🎈 Add version 1.21.9

[rom1504bot]

This automated PR sets up the relevant boilerplate for Minecraft version 1.21.9.

Links:

• Issue: Support Minecraft PC 1.21.9 minecraft-data#1095
• PR: 🎈 Add Minecraft pc 1.21.9 data minecraft-data#1096

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

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:1.11.2:runServer	8.7	❌

[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:1.15:runServer	8.7	❌

[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:1.16:runServer	8.7	❌

[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:1.21.9:runServer	8.7	❌

[rom1504]

@copilot please read the ci failures and fix

[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:1.21.9:runServer	8.7	❌

[rom1504]

@copilot still fails

[extremeheat]

The failures were just for network issues causing deps to not load, for some reason it's flaky

      > Could not resolve dev.equo.ide:solstice:1.7.5.
         > Could not get resource 'https://maven.wagyourtail.xyz/releases/dev/equo/ide/solstice/1.7.5/solstice-1.7.5.pom'.
            > Could not GET 'https://maven.wagyourtail.xyz/releases/dev/equo/ide/solstice/1.7.5/solstice-1.7.5.pom'.
               > Read timed out