[typespec-azure-core]: function getLroMetadata fails to retrieve finalStateVia in tspfile

[dolauli]

Describe the bug

Below are two cases: one for LRO update and the other for LRO deletion

https://github.com/Azure/azure-rest-api-specs/blob/fa6c6015b1633a701edb629c1a759433aa1fdaf2/specification/scvmm/ScVmm.Management/VmmServer.tsp#L44-L48

https://github.com/Azure/azure-rest-api-specs/blob/fa6c6015b1633a701edb629c1a759433aa1fdaf2/specification/scvmm/ScVmm.Management/VmmServer.tsp#L54-L59

When I attempt to use the following code to retrieve finalStateVia

const lro = getLroMetadata(...);
const finalStateVia = lro.finalStateVia;

Expected value of finalStateVia:

azure-async-operation

Actual value:

location

Reproduction

Added in the description

Checklist

• Follow our Code of Conduct
• Check that this issue is about the Azure libraries for typespec. For bug in the typespec language or core libraries file it in the TypeSpec repo
• Check that there isn't already an issue that request the same bug to avoid creating a duplicate.
• The provided reproduction is a minimal reproducible example of the bug.