Bump org.hibernate.orm:hibernate-core (#9853)

Bumps the development-dependencies group with 1 update: [org.hibernate.orm:hibernate-core](https://github.com/hibernate/hibernate-orm).


Updates `org.hibernate.orm:hibernate-core` from 6.6.7.Final to 6.6.8.Final
- [Release notes](https://github.com/hibernate/hibernate-orm/releases)
- [Changelog](https://github.com/hibernate/hibernate-orm/blob/6.6.8/changelog.txt)
- [Commits](hibernate/hibernate-orm@6.6.7...6.6.8)

---
updated-dependencies:
- dependency-name: org.hibernate.orm:hibernate-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: development-dependencies
...

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

Author: dependabot[bot]

build.gradle

@@ -74,7 +74,7 @@ ext {
     groovyVersion = '4.0.25'
     hamcrestVersion = '3.0'
     hazelcastVersion = '5.4.0'
-    hibernateVersion = '6.6.7.Final'
+    hibernateVersion = '6.6.8.Final'
     hsqldbVersion = '2.7.4'
     h2Version = '2.3.232'
     jacksonVersion = '2.18.2'