ibmi connector no_data not supported defaults to initial [DBZ-8920]

Migrated from [DBZ-8920](https://issues.redhat.com/browse/DBZ-8920)

h1. Bug report
h2. What Debezium connector do you use and what version?

ibmi-connector 3.1.0.Final
h2. What is the connector configuration?

{
  "name": "name",
  "config": {
    "connector.class": "io.debezium.connector.db2as400.As400RpcConnector",
    "tasks.max": "1",
    "database.hostname": "host",
    "database.dbname": "xx",

    "snapshot.mode": "no_data",

...
h2. What is the captured database version and mode of deployment?

On prem DB2
h2. What behavior do you expect?

snapshots not to happen when no_data is specified
h2. What behavior do you see?

Snapshots happening
h2. Do you see the same behaviour using the latest released Debezium version?

yes

3.2.0-SNAPSHOT
h2. Do you have the connector logs, ideally from start till finish?

can be provided
h2. How to reproduce the issue using our [tutorial|https://github.com/debezium/debezium-examples/tree/main/tutorial] deployment?

yes just set the snapshot.mode to no_data
h2. Implementation ideas (optional)

PR to follow