[feature](ddc) enable DDC workload group

[catpineapple]

What problem does this PR solve?

Supports enabling workload groups for compute groups like DCR
Note: Need to update the latest doris be image, built-in scripts have important logic. doris-50247

  computeGroups:
    - uniqueId: test1
      enableWorkloadGroup: true
      replicas: 3
      image: apache/doris:be-{version}

Release note

None

Check List (For Author)

• Test

  • Regression test
  • Unit Test
  • Manual test (add detailed scripts or steps below)
  • No need to test or manual test. Explain why:
    • This is a refactor/code format and no logic has been changed.
    • Previous test can cover this change.
    • No code files have been changed.
    • Other reason

• Behavior changed:

  • No.
  • Yes.

• Does this need documentation?

  • No.
  • Yes.

Check List (For Reviewer who merge this PR)

• Confirm the release note
• Confirm test cases
• Confirm document
• Add branch pick label

[intelligentfu8]

LGTM