Add tests for Put/GetReplicationTasksDLQ

[3vilhamster]

What changed?
Added tests for PutReplicationTaskToDLQ and GetReplicationTasksFromDLQ

Why?
Improving test coverage

How did you test it?

Potential risks

Release notes

Documentation Changes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.84%. Comparing base (96c47bc) to head (02be6b3).
Report is 3 commits behind head on master.

Additional details and impacted files

Files	Coverage Δ
common/persistence/execution_manager.go	76.02% <100.00%> (+3.79%)	⬆️

... and 13 files with indirect coverage changes

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[coveralls]

Pull Request Test Coverage Report for Build 018faa28-3da5-4939-b8e4-1fc68b934b9c

Details

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• 94 unchanged lines in 18 files lost coverage.
• Overall coverage decreased (-0.02%) to 69.43%

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Files with Coverage Reduction	New Missed Lines	%
service/history/task/transfer_standby_task_executor.go	2	86.21%
common/task/weighted_round_robin_task_scheduler.go	2	89.05%
service/matching/tasklist/db.go	2	73.23%
common/persistence/execution_manager.go	2	86.67%
service/matching/tasklist/task_list_manager.go	2	76.48%
common/task/fifo_task_scheduler.go	2	87.63%
common/persistence/sql/sqlplugin/mysql/task.go	2	73.68%
common/util.go	2	91.78%
common/persistence/nosql/utils.go	2	60.0%
common/persistence/statsComputer.go	2	97.14%

Totals
Change from base Build 018faa0a-b974-48e9-b632-cc3f5a4155ca:	-0.02%
Covered Lines:	102353
Relevant Lines:	147418

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💛 - Coveralls