Possibility to set a new inbound.mode

[hamza-m-masood]

Which problem does the PR fix?

issue: #976

What's in this PR?

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[hamza-m-masood]

The controller pod crashes with the following error when there are no env vars set in relation to the inbound params:

2023-11-17T09:51:12.571Z  WARN 1 --- [           main] s.c.c.OperateClientProdAutoConfiguration : An attempt to connect to Operate failed: io.camunda.operate.exception.OperateException: org.apache.hc.client5.http.HttpHostConnectException: Connect to http://localhost:8081/ [localhost/127.0.0.1] failed: Connection refused

For this reason I think it is best to set both env vars to true like this:

- name: CAMUNDA_CONNECTOR_POLLING_ENABLED
  value: "true"
- name: CAMUNDA_CONNECTOR_WEBHOOK_ENABLED
  value: "true"