fix(deps): update hibernate core to v6.6.20.final

Author: renovate[bot]

build.gradle

@@ -31,8 +31,8 @@ dependencies {
     implementation 'io.activej:activej-launchers-http:5.5'
     implementation 'org.hsqldb:hsqldb:2.7.4'
     implementation 'org.postgresql:postgresql:42.7.7'
-    implementation 'org.hibernate:hibernate-core:6.4.1.Final'
-    implementation 'org.hibernate:hibernate-hikaricp:6.4.1.Final'
+    implementation 'org.hibernate:hibernate-core:6.6.20.Final'
+    implementation 'org.hibernate:hibernate-hikaricp:6.6.20.Final'
     implementation 'org.liquibase:liquibase-core:4.28.0'
     implementation('org.liquibase.ext:liquibase-yugabytedb:4.28.0') { exclude group: 'org.liquibase' }
     implementation 'com.zaxxer:HikariCP:6.3.0'