TAS: Validate that the pod's index in the topology ungater falls within the expected range

[PBundyra]

What would you like to be added:
Add new or refactor existing functions to validate if the the pod index in topology ungater is within [0, maxIndex] range. This is the follow-up to this comment

Why is this needed:

Completion requirements:

This enhancement requires the following artifacts:

• Code change

The artifacts should be linked in subsequent comments.

[mimowo]

cc @mbobrovskyi
maybe we could have a helper function like ReadUIntFromLabelWithMax(pod, labelKey, maxValue) so that other places can use it too.

[mbobrovskyi]

/assign