Bump adventureVersion from 4.11.0 to 4.12.0 in /Plan (#2756)

Bumps `adventureVersion` from 4.11.0 to 4.12.0.

Updates `adventure-text-serializer-gson` from 4.11.0 to 4.12.0
- [Release notes](https://github.com/KyoriPowered/adventure/releases)
- [Commits](https://github.com/KyoriPowered/adventure/compare/v4.11.0...v4.12.0)

Updates `adventure-text-serializer-legacy` from 4.11.0 to 4.12.0
- [Release notes](https://github.com/KyoriPowered/adventure/releases)
- [Commits](https://github.com/KyoriPowered/adventure/compare/v4.11.0...v4.12.0)

Updates `adventure-text-minimessage` from 4.11.0 to 4.12.0
- [Release notes](https://github.com/KyoriPowered/adventure/releases)
- [Commits](https://github.com/KyoriPowered/adventure/compare/v4.11.0...v4.12.0)

---
updated-dependencies:
- dependency-name: net.kyori:adventure-text-serializer-gson
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: net.kyori:adventure-text-serializer-legacy
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: net.kyori:adventure-text-minimessage
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Plan/build.gradle

@@ -89,7 +89,7 @@ subprojects {
         caffeineVersion = "2.9.2"
         mysqlVersion = "8.0.31"
         sqliteVersion = "3.40.0.0"
-        adventureVersion = "4.11.0"
+        adventureVersion = "4.12.0"
         hikariVersion = "5.0.1"
         slf4jVersion = "2.0.5"
         geoIpVersion = "3.0.2"