Bump the development-dependencies group with 2 updates

Bumps the development-dependencies group with 2 updates: [org.hibernate.orm:hibernate-core](https://github.com/hibernate/hibernate-orm) and [com.icegreen:greenmail](https://github.com/greenmail-mail-test/greenmail).


Updates `org.hibernate.orm:hibernate-core` from 6.6.29.Final to 6.6.31.Final
- [Release notes](https://github.com/hibernate/hibernate-orm/releases)
- [Changelog](https://github.com/hibernate/hibernate-orm/blob/6.6.31/changelog.txt)
- [Commits](hibernate/hibernate-orm@6.6.29...6.6.31)

Updates `com.icegreen:greenmail` from 2.1.5 to 2.1.6
- [Release notes](https://github.com/greenmail-mail-test/greenmail/releases)
- [Commits](greenmail-mail-test/greenmail@release-2.1.5...release-2.1.6)

---
updated-dependencies:
- dependency-name: org.hibernate.orm:hibernate-core
  dependency-version: 6.6.31.Final
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: development-dependencies
- dependency-name: com.icegreen:greenmail
  dependency-version: 2.1.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: development-dependencies
...

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

Author: dependabot[bot]

build.gradle

@@ -61,11 +61,11 @@ ext {
     derbyVersion = '10.16.1.1'
     ftpServerVersion = '1.2.1'
     graalvmVersion = '24.2.2'
-    greenmailVersion = '2.1.5'
+    greenmailVersion = '2.1.6'
     groovyVersion = '4.0.28'
     hamcrestVersion = '3.0'
     hazelcastVersion = '5.5.0'
-    hibernateVersion = '6.6.29.Final'
+    hibernateVersion = '6.6.31.Final'
     hsqldbVersion = '2.7.4'
     h2Version = '2.3.232'
     jacksonVersion = '2.19.2'