Bump adventureVersion from 4.24.0 to 5.1.1 in /Plan

Bumps `adventureVersion` from 4.24.0 to 5.1.1.

Updates `net.kyori:adventure-api` from 4.24.0 to 5.1.1
- [Release notes](https://github.com/PaperMC/adventure/releases)
- [Commits](PaperMC/adventure@v4.24.0...v5.1.1)

Updates `net.kyori:adventure-text-serializer-gson` from 4.24.0 to 5.1.1
- [Release notes](https://github.com/PaperMC/adventure/releases)
- [Commits](PaperMC/adventure@v4.24.0...v5.1.1)

Updates `net.kyori:adventure-text-serializer-legacy` from 4.24.0 to 5.1.1
- [Release notes](https://github.com/PaperMC/adventure/releases)
- [Commits](PaperMC/adventure@v4.24.0...v5.1.1)

Updates `net.kyori:adventure-text-minimessage` from 4.24.0 to 5.1.1
- [Release notes](https://github.com/PaperMC/adventure/releases)
- [Commits](PaperMC/adventure@v4.24.0...v5.1.1)

---
updated-dependencies:
- dependency-name: net.kyori:adventure-api
  dependency-version: 5.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: net.kyori:adventure-text-serializer-gson
  dependency-version: 5.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: net.kyori:adventure-text-serializer-legacy
  dependency-version: 5.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: net.kyori:adventure-text-minimessage
  dependency-version: 5.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Plan/build.gradle

@@ -73,7 +73,7 @@ subprojects {
         mysqlVersion = "9.7.0"
         mariadbVersion = "3.5.8"
         sqliteVersion = "3.42.0.1"
-        adventureVersion = "4.24.0"
+        adventureVersion = "5.1.1"
         hikariVersion = "7.0.2"
         slf4jVersion = "2.0.17"
         geoIpVersion = "4.4.0"