Support DRA

### What feature you would like to be added?

DRA integration.

### Why is this needed?

Currently, Spark Operator does not support DRA integration.

DRA's core feature has already graduated GA in kubernetes v1.34.

I think it's time to consider how Spark Operator supports DRA.

### Describe the solution you would like

_No response_

### Describe alternatives you have considered

_No response_

### Additional context

I had a feedback in the PR for Kueue integration: https://github.com/kubernetes-sigs/kueue/pull/7268#discussion_r2871284341

### Love this feature?

Give it a 👍 We prioritize the features with most 👍

Start by reviewing the existing Kueue integration and the linked Kueue pull request discussion, then compare the requested behavior with Kubernetes v1.34 DRA documentation. The issue names no files, tests, or entry points, so the implementation scope must first be defined; done means Spark Operator supports DRA integration with documented behavior and coverage.

Written by the indexing model from the issue text.