ROX-33464: Enable sensor to central rate limiting in long running clusters

[JoukoVirtanen]

Recently rate limiting/batching has been implemented for the network flow update and processes listening on ports messages from sensor to central. In addition a cap has been placed on the size of the caches of this information. These features are both behind feature flags. These features are neither GA or even in technical preview. To gain confidence in these features and bring these features closer to GA, this PR enables these features in the long running clusters.

These features were created in the following PRs:

stackrox/stackrox#17716
stackrox/stackrox#18028

Testing

Went to http://github.com/stackrox/test-gh-actions/actions/workflows/create-clusters.yml
Clicked "Run Workflow"
Selected this branch
Set the version to 4.11.x-229-gfe658b3424
Clicked "Run Worflow"

Obtained the artifacts for the clusters and looked at the environment variables for the sensors in the clusters with fake and real workload.

In both cases the following was observed

        - name: ROX_NETFLOW_BATCHING
          value: "true"
        - name: ROX_NETFLOW_CACHE_LIMITING
          value: "true"

[vikin91]

Looks good!