Fix GetListWorkflowExecutionsByStatusQuery to set status as int

[neil-xie]

What changed?
Currently when it builds the query, it sets CloseStatus as string which is not matched with Pinot schema and can cause query failure.

Why?
Bug fix

How did you test it?
Unit test

Potential risks

Release notes

Documentation Changes

[codecov]

Codecov Report

Merging #5936 (3f4c609) into master (44b1f59) will increase coverage by 0.00%.
The diff coverage is 100.00%.

Additional details and impacted files

Files	Coverage Δ
common/persistence/pinot/pinot_visibility_store.go	93.23% <100.00%> (ø)

... and 8 files with indirect coverage changes

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[coveralls]

Pull Request Test Coverage Report for Build 018f0e2c-f830-4bfa-ac45-867d028eedb9

Details

• 7 of 7 (100.0%) changed or added relevant lines in 1 file are covered.
• 51 unchanged lines in 6 files lost coverage.
• Overall coverage increased (+0.004%) to 67.684%

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Files with Coverage Reduction	New Missed Lines	%
service/frontend/api/handler.go	2	62.07%
service/matching/taskListManager.go	2	80.65%
common/archiver/filestore/historyArchiver.go	4	80.95%
service/frontend/wrappers/metered/metered.go	9	63.18%
service/history/execution/mutable_state_task_refresher.go	14	61.39%
service/history/task/task_util.go	20	70.57%

Totals
Change from base Build 018f0e15-3db2-4319-8f9e-70f56acfdbef:	0.004%
Covered Lines:	99132
Relevant Lines:	146462

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💛 - Coveralls