Regenerate R4 examples with preserved slice name casing #563

Job	Run time
test-python-fhirpy-sdk-test (latest, 3.13)	1m 27s
test-mustache-java-r4-example (latest, 25)	22s
test-typescript-ccda-example (latest)	59s
test-mustache-java-r4-example (latest, 21)	19s
test-python-sdk-test (latest, 3.13)	1m 29s
test-typescript-sdk-r4 (latest)	20s
test-csharp-sdk (latest, 8.0.x)	1m 33s
	6m 29s

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