support parallel tasks for cron datamigrate

[xliuqq]

Ⅰ. Describe what this PR does

support parallel data migrate for cron policy.

previous pr see #3645.

Ⅱ. Does this pull request fix one issue?

fixes #XXXX

Ⅲ. List the added test cases (unit test/integration test) if any, please explain if no tests are needed.

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 12 lines in your changes are missing coverage. Please review.

Project coverage is 64.31%. Comparing base (34fb81a) to head (d6df7be). Report is 72 commits behind head on master.

Files	Patch %	Lines
pkg/ddc/base/operation.go	0.00%	10 Missing :warning:
pkg/utils/kubeclient/job.go	0.00%	2 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3732      +/-   ##
==========================================
- Coverage   64.40%   64.31%   -0.09%     
==========================================
  Files         474      474              
  Lines       28339    28422      +83     
==========================================
+ Hits        18252    18281      +29     
- Misses       7913     7967      +54     
  Partials     2174     2174              

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[sonarqubecloud[bot]]

Quality Gate passed

Issues
6 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
2.5% Duplication on New Code

See analysis details on SonarCloud

[fluid-e2e-bot[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: cheyang

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• ~~OWNERS~~ [cheyang]

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