spec.components.runner.runnerAnnotations of ChaosEngine CR seems not working

[aek-dsk]

Is this a BUG REPORT or FEATURE REQUEST?

BUG REPORT

What happened:
Applying spec.components.runner.runnerAnnotations of the ChaosEngine CR in litmuschaos.io/v1alpha1 does not generate the requested annotation on the runner pod. The functionality seems to be broken. In addition, some inconsistencies between documentation, CRD, source code were found, e.g. here: https://litmuschaos.github.io/litmus/experiments/concepts/chaos-resources/chaos-engine/runner-components/ in the schema description - runnerAnnotations vs runnerAnnotation, or the source code

chaos-operator/controllers/chaosengine_controller.go

Line 211 in 9fb5e5a

WithAnnotations(engine.Instance.Spec.Components.Runner.RunnerAnnotation).

What you expected to happen:
runner annotations to be correctly applied

How to reproduce it (as minimally and precisely as possible):
by trying to apply this option

Anything else we need to know?:
Could you please check?

[aek-dsk]

Example:

spec:
  components:
    runner:
      runnerAnnotations:
        sidecar.istio.io/inject: "false"

[aek-dsk]

For anybody stumbling upon this: there is an undocumented option in the chaosengine CRD that can be used instead: runnerLabels

spec:
  components:
    runner:
      runnerLabels:
        sidecar.istio.io/inject: "false"