[cosmosdb][python] Fix weird model name

[msyyc]

Fix Azure/azure-sdk-for-python#17254

https://github.com/Azure/sdk-release-request/issues/3082

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compared tags (via openapi-validator v1.13.0)	new version	base version
default	default(943cb59)	default(main)

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_{Posted by Swagger Pipeline | How to fix these errors?}

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Generated ApiView

Language	Package Name	ApiView Link
Python	track2_azure-mgmt-cosmosdb	Create ApiView timeout. Package is too large and we cannot create ApiView for it.
JavaScript	@azure/arm-cosmosdb	There is no API change compared with the previous version
Java	azure-resourcemanager-cosmos-generated	https://apiview.dev/Assemblies/Review/9c7431a1d1304191ae64d67dfe58bd12
.Net	Azure.ResourceManager.CosmosDB	There is no API change compared with the previous version