enable allow-duplicates in worker-context

[owais-vd]

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Fixes #[issue number]

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[jingtang10]

@dubdabasoduba @owais-vd thanks for this pr - can you please update the pr description to explain why this is needed and link to an issue? thanks!

[owais-vd]

Hi @jingtang10 Getting the following exception because of http://fhir.org/guides/who/core/ValueSet/pregnancystatus-val duplicate URL. I've extracted the package.r4.tgz file and noticed that both files ValueSet-pregnancystatuspregnant-value.json and ValueSet-pregnancystatus-values.json have the same URL. I think both value-set can't have the same URL.

For testing purposes, I extracted the package.r4.tgz file and updated the URL, and see it's working as expected. I think we no longer need this PR change.

I think this should be fixed here https://github.com/WorldHealthOrganization/smart-immunizations

org.hl7.fhir.exceptions.DefinitionException: Duplicate Resource http://fhir.org/guides/who/core/ValueSet/pregnancystatus-val
	at org.hl7.fhir.r4.context.BaseWorkerContext.cacheResource(BaseWorkerContext.java:182)
	at org.hl7.fhir.r4.context.SimpleWorkerContext.loadFromFileJson(SimpleWorkerContext.java:276)
	at org.hl7.fhir.r4.context.SimpleWorkerContext.loadDefinitionItem(SimpleWorkerContext.java:221)
	at org.hl7.fhir.r4.context.SimpleWorkerContext.loadFromPackage(SimpleWorkerContext.java:295)
	at org.hl7.fhir.r4.context.SimpleWorkerContext.fromPackage(SimpleWorkerContext.java:159)
	at com.google.android.fhir.datacapture.DataCaptureConfig$simpleWorkerContext$2.invoke(DataCaptureConfig.kt:74)
	at com.google.android.fhir.datacapture.DataCaptureConfig$simpleWorkerContext$2.invoke(DataCaptureConfig.kt:73)
	at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
	at com.google.android.fhir.datacapture.DataCaptureConfig.getSimpleWorkerContext$datacapture_release(DataCaptureConfig.kt:
	at com.google.android.fhir.datacapture.mapping.ResourceMapper.extractByStructureMap(ResourceMapper.kt:204)
	at com.google.android.fhir.datacapture.mapping.ResourceMapper.extract(ResourceMapper.kt:142)
	at com.google.android.fhir.datacapture.mapping.ResourceMapper.extract$default(ResourceMapper.kt:106)
	at org.smartregister.fhircore.quest.ui.questionnaire.QuestionnaireViewModel.performExtraction(QuestionnaireViewModel.kt:4
	at org.smartregister.fhircore.quest.ui.questionnaire.QuestionnaireViewModel$handleQuestionnaireSubmission$1.invokeSuspend

cc: @dubdabasoduba

[owais-vd]

closing this PR as we no longer need this