feat(helm): add PodDisruptionBudget api version helm chart helpers

[pmalek-sumo]

The idea behind this change is to support newer version of PodDisruptionBudget (policy/v1beta1/PodDisruptionBudget vs policy/v1/PodDisruptionBudget)
and to get rid of deprecation warnings when installing our chart:

$ helm upgrade --install collection sumologic/sumologic
Release "collection" does not exist. Installing it now.
...
W1118 17:09:13.651675 2835438 warnings.go:70] policy/v1beta1 PodDisruptionBudget is deprecated in v1.21+, unavailable in v1.25+; use policy/v1 PodDisruptionBudget
W1118 17:09:13.654276 2835438 warnings.go:70] policy/v1beta1 PodDisruptionBudget is deprecated in v1.21+, unavailable in v1.25+; use policy/v1 PodDisruptionBudget
...
W1118 17:09:14.026749 2835438 warnings.go:70] policy/v1beta1 PodDisruptionBudget is deprecated in v1.21+, unavailable in v1.25+; use policy/v1 PodDisruptionBudget
W1118 17:09:14.028299 2835438 warnings.go:70] policy/v1beta1 PodDisruptionBudget is deprecated in v1.21+, unavailable in v1.25+; use policy/v1 PodDisruptionBudget
NAME: collection
LAST DEPLOYED: Thu Nov 18 17:09:12 2021
NAMESPACE: sumologic
STATUS: deployed
REVISION: 1
NOTES:
Thank you for installing sumologic.

[pmalek-sumo]

This will require some more work in tests since we need to pass in api versions to helm template invocation like so:

helm template ... --api-versions policy/v1/PodDisruptionBudget ... 

but we don't want to hardcode those and we'd like to make this configurable per test.

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[perk-sumo]

Cool, the end state is OK, thanks for working on that!

But 😅
I don't like the commit history here, please either fix the history or squash the PR before merge.

[pmalek-sumo]

please either fix the history or squash the PR before merge.

squashed :) Thanks!