refactor: move duration parsing into internal for #1628 (#1682) #4199

Job	Run time
Shard Integration Tests	6s
VSCode Extension	45s
Rebuild All	1m 54s
Console	50s
Lint	1m 15s
SQL	1m 5s
Proto Breaking Change Check	5s
Test Go	2m 56s
Test README	1m 58s
Integration Test (TestServiceWithRealDal)	2m 5s
Integration Test (TestCron)	2m 42s
Integration Test (TestFSM)	3m 26s
Integration Test (TestFSMRetry)	2m 52s
Integration Test (TestFSMGoTests)	2m 43s
Integration Test (TestHttpIngress)	2m 39s
Integration Test (TestLease)	3m 10s
Integration Test (TestPubSub)	3m 9s
Integration Test (TestConsumptionDelay)	2m 54s
Integration Test (TestRetry)	3m 2s
Integration Test (TestDatabase)	2m 52s
Integration Test (TestASMWorkflow)	2m 20s
Integration Test (TestASMPagination)	2m 20s
Integration Test (TestCmdsCreateProjectTomlFilesIfNonexistent)	2m 38s
Integration Test (TestDefaultToRootWhenModuleDirsMissing)	2m 46s
Integration Test (TestNonExportedDecls)	3m 6s
Integration Test (TestUndefinedExportedDecls)	2m 52s
Integration Test (TestHttpEncodeOmitempty)	2m 59s
Integration Test (TestLifecycle)	3m 28s
Integration Test (TestInterModuleCall)	3m 3s
Integration Test (TestSchemaGenerate)	2m 52s
Integration Test (TestModuleUnitTests)	3m 15s
Integration Test (TestFTLMap)	2m 56s
Integration Test (TestRuntimeReflection)	2m 49s
Integration Success	1s
	1h 19m 53s

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