Expose invalid timer value in the error message

[demirkayaender]

What changed?
Currently, if the timer has an invalid value; the error just says it's invalid. With this change, it will also tell the value of it.

Why?

How did you test it?

Potential risks

Release notes

Documentation Changes

[mkolodezny]

lgtm

[coveralls]

Pull Request Test Coverage Report for Build 007c367c-1444-4bd9-93cd-3adc3574ceee

• 0 of 3 (0.0%) changed or added relevant lines in 1 file are covered.
• 100 unchanged lines in 10 files lost coverage.
• Overall coverage decreased (-0.06%) to 56.433%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
service/history/decision/checker.go	0	3	0.0%

Files with Coverage Reduction	New Missed Lines	%
service/history/decision/checker.go	1	74.82%
common/task/fifoTaskScheduler.go	2	87.63%
common/task/weightedRoundRobinTaskScheduler.go	2	89.12%
common/types/mapper/thrift/shared.go	2	64.98%
service/history/execution/mutable_state_builder.go	2	69.92%
service/matching/matcher.go	2	91.46%
service/history/task/transfer_active_task_executor.go	4	70.62%
common/persistence/nosql/nosqlplugin/cassandra/workflow.go	6	49.77%
common/persistence/nosql/nosqlplugin/cassandra/workflowUtils.go	28	76.31%
common/persistence/nosql/nosqlplugin/cassandra/workflowParsingUtils.go	51	80.09%

Totals
Change from base Build a66335e4-f59b-46d7-a396-6d906ce9052d:	-0.06%
Covered Lines:	78628
Relevant Lines:	139331

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💛 - Coveralls