Update DPA API version

[mateusoliveira43]

This issue to track improvements taht could be done if DPA API versions updates. We can not change fields (except their descriptions) or remove fields within same API version, or we will be creating problems to our users when they update OADP versions.

• Standardize time fields from DPA when API version updates #1295
• Remove unused fields from DPA when API version updates #1276
• BUG get image logic #1379
• Remove nullable hack when API version upgrades #1528
• Remove duplicated fields from DPA when API version updates #1534

[kaovilai]

We can add new versions and auto upgrade using https://kubernetes.io/docs/tasks/extend-kubernetes/custom-resources/custom-resource-definition-versioning/#upgrade-existing-objects-to-a-new-stored-version

[kaovilai]

v1alpha2 might work well

[openshift-bot]

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/lifecycle stale

[mateusoliveira43]

/lifecycle frozen