always use merge-patch+json in apply

[fabianvf]

This will let apply work with all resources, including ones defined by CustomResourceDefinitions, even when the resource was not created with apply

[fabianvf]

/cherrypick release-0.9

[openshift-cherrypick-robot]

@fabianvf: once the present PR merges, I will cherry-pick it on top of release-0.9 in a new PR and assign it to you.

In response to this:

/cherrypick release-0.9

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[willthames]

Is there something that fails without this - if so would be good to get that added to the apply test suite in the k8s module.

[willthames]

All tests in ansible/ansible#49053 pass with this change (with some minor tweaks to the test suite, but more for default apply than this).

[willthames]

I changed the test suite so that it would fail without this change just to double check too.

[openshift-cherrypick-robot]

@fabianvf: new pull request created: #295

In response to this:

/cherrypick release-0.9

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.