Fix invalid parameter

[changeworld]

The CosmosDB Account name doesn't allow uppercase letters.

If you try to keep name = "cosmosDBAccount1", it throws following error.

* azurerm_cosmosdb_account.test: cosmosdb.DatabaseAccountsClient#CreateOrUpdate: Failure responding to request: StatusCode=400 -- Original Error: autorest/azure: Service returned an error. Status=400 Code="Unknown" Message="Unknown service error"

At least this sample works at least.

[tombuildsstuff]

Hey @changeworld

Thanks for this PR - this LGTM and I'm going to open another PR to fix the validation which should be being applied in plan

Thanks!

[ghost]

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