Description of problem:

compression can not be added into vector.toml. Vector can forward logs to Elasticsearch 8 when I set compression=glib or zlib in vector.toml

Version-Release number of selected component (if applicable):

How reproducible:

Always

Steps to Reproduce:

1. Deploy CLF with tuning options

cat <<EOF |  oc apply -f -
apiVersion: logging.openshift.io/v1
kind: ClusterLogForwarder
metadata:
  name:  clf-logs
spec:
  inputs:
  - application:
      namespaces:
      - project-qa-1
    name: myLogsQA
  outputs:
  - name: elasticsearch
    elasticsearch:
      version: 8
    secret:
      name: to-es-secret
    type: elasticsearch
    tuning:
      compression: 'gzip'
      delivery: AtMostOnce
      maxWrite: 10M
      minRetryDuration: 5
      maxRetryDuration: 10
    url: https://elasticsearch-server.es-aosqe.svc:9200
  pipelines:
  - inputRefs:
    - myLogsQA
    name:  pipe1
    outputRefs:
    - elasticsearch
  serviceAccountName: clf-to-es
EOF

1.  Check the vector.toml
2. ...

Actual results:

compression: gzip isn't enabled  in vector.toml

Expected results:

Additional info: