Bump com.maxmind.geoip2:geoip2 from 4.4.0 to 5.1.0 in /Plan

Bumps [com.maxmind.geoip2:geoip2](https://github.com/maxmind/GeoIP2-java) from 4.4.0 to 5.1.0.
- [Release notes](https://github.com/maxmind/GeoIP2-java/releases)
- [Changelog](https://github.com/maxmind/GeoIP2-java/blob/main/CHANGELOG.md)
- [Commits](maxmind/GeoIP2-java@v4.4.0...v5.1.0)

---
updated-dependencies:
- dependency-name: com.maxmind.geoip2:geoip2
  dependency-version: 5.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Plan/build.gradle

@@ -76,7 +76,7 @@ subprojects {
         adventureVersion = "4.24.0"
         hikariVersion = "7.0.2"
         slf4jVersion = "2.0.18"
-        geoIpVersion = "4.4.0"
+        geoIpVersion = "5.1.0"
         gsonVersion = "2.14.0"
         dependencyDownloadVersion = "2.0.0"
         ipAddressMatcherVersion = "5.6.2"