Corrects interface

[davidporter-id-au]

Corrects private interfaces which were exposed in #5046.

Because they're private, it's not possible to mock this function (🤦 ). This corrects this oversight.

Unit tests

Potential risks

Release notes

Documentation Changes

[coveralls]

Pull Request Test Coverage Report for Build 01850d26-99b1-41c2-ad98-b21dff0127be

• 2 of 6 (33.33%) changed or added relevant lines in 1 file are covered.
• 41 unchanged lines in 14 files lost coverage.
• Overall coverage increased (+0.02%) to 57.262%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
tools/cassandra/cqlclient.go	2	6	33.33%

Files with Coverage Reduction	New Missed Lines	%
service/history/queue/transfer_queue_processor_base.go	1	77.62%
client/history/client.go	2	38.1%
client/history/metricClient.go	2	45.3%
common/peerprovider/ringpopprovider/config.go	2	81.58%
common/task/fifoTaskScheduler.go	2	87.63%
common/task/weightedRoundRobinTaskScheduler.go	2	89.64%
service/history/execution/mutable_state_builder.go	2	68.79%
service/history/handler.go	2	47.15%
service/matching/matcher.go	2	91.46%
service/matching/taskListManager.go	3	76.37%

Totals
Change from base Build 01850ad2-b69e-4be1-955e-0b7b658eaf18:	0.02%
Covered Lines:	85171
Relevant Lines:	148739

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💛 - Coveralls