Add kernel dependency and missing StorageEngine class for RC

Co-authored-by: Jonatan Jäderberg <[email protected]>

Author: Mats-SX

compatibility/5.6/storage-engine-adapter/build.gradle

@@ -44,6 +44,7 @@ if (ver.'neo4j'.startsWith('5.')) {
     dependencies {
         annotationProcessor group: 'org.neo4j', name: 'annotations', version: ver.'neo4j'
         compileOnly group: 'org.neo4j', name: 'annotations', version: ver.'neo4j'
+        compileOnly group: 'org.neo4j', name: 'neo4j-kernel-api', version: ver.'neo4j'
 
         implementation project(':neo4j-adapter')
         implementation project(':storage-engine-adapter-api')