Nice Repository. Could we add an example for DEK rotation? Or extend the existing Kotlin example with Hashicorp to support key rotation?

We tried to add key rotation via the following configuration (notice the property encrypt.dek.expiry.days):

curl --request POST --url "${SR_REST_ENDPOINT}/subjects/${TOPIC}-value/versions" \
  --user "${SR_API_KEY}:${SR_API_SECRET}" \
  --header 'Content-Type: application/vnd.schemaregistry.v1+json' \
  --data '{
        "ruleSet": {
        "domainRules": [
      {
        "name": "encryptPII",
        "kind": "TRANSFORM",
        "type": "ENCRYPT",
        "mode": "WRITEREAD",
        "tags": ["PII"],
        "params": {
           "encrypt.kek.name": "csfle",
           "encrypt.kms.key.id": "http://127.0.0.1:8200/transit/keys/csfle",
           "encrypt.kms.type": "hcvault",
           "encrypt.dek.expiry.days": 1
          },
        "onFailure": "ERROR,NONE"
        }
        ]
      }
   }'

Also we upgraded to version 7.5.0 of the library. This rsults in the following exceptions:

10:37:03.572 [Thread-0] ERROR KafkaProducer - org.apache.kafka.common.errors.SerializationException: Rule failed: encryptPII for {"id": "0", "name": "Anna", "birthday": "1993-08-01", "timestamp": "2024-03-19T10:37:00.457Z"}
10:37:05.715 [Thread-0] ERROR KafkaProducer - org.apache.kafka.common.errors.SerializationException: Rule failed: encryptPII for {"id": "1", "name": "Joe", "birthday": "1996-09-11", "timestamp": "2024-03-19T10:37:05.577Z"}