ebs br: mark volume backup complete only when all data planes are at waiting snapshots creation time

[BornChanger]

What problem does this PR solve?

closes #5725

What is changed and how does it work?

only set volume backup is done (failed or complete) after all data planes are done at waiting snapshot creation time whose during is long.

Code changes

• Has Go code change
• Has CI related scripts change

Tests

• Unit test
• E2E test
• Manual test
• No code

Side effects

• Breaking backward compatibility
• Other side effects:

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release Notes

Please refer to Release Notes Language Style Guide before writing the release note.

[ti-chi-bot]

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[BornChanger]

dup with apar #5735