Bump org.hibernate:hibernate-core from 5.4.25.Final to 6.2.6.Final

Bumps [org.hibernate:hibernate-core](https://github.com/hibernate/hibernate-orm) from 5.4.25.Final to 6.2.6.Final.
- [Release notes](https://github.com/hibernate/hibernate-orm/releases)
- [Changelog](https://github.com/hibernate/hibernate-orm/blob/6.2.6/changelog.txt)
- [Commits](hibernate/hibernate-orm@5.4.25...6.2.6)

---
updated-dependencies:
- dependency-name: org.hibernate:hibernate-core
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

build.gradle

@@ -314,7 +314,7 @@ dependencies {
     implementation group: 'uk.gov.hmcts.reform', name: 'send-letter-client', version: versions.sendLetterClient
     implementation group: 'uk.gov.service.notify', name: 'notifications-java-client', version: versions.hmctsNotify
     implementation group: 'org.apache.httpcomponents', name: 'httpclient', version: versions.httpComponents
-    implementation group: 'org.hibernate', name: 'hibernate-core', version: '6.2.4.Final'
+    implementation group: 'org.hibernate', name: 'hibernate-core', version: '6.2.6.Final'
     implementation group: 'ch.qos.logback', name: 'logback-classic', version: versions.logbackVersion
     implementation group: 'ch.qos.logback', name: 'logback-core', version: versions.logbackVersion