public String getEmulatorKey() {
        return "C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==";
    }
Emulator key is a known constant and specified in Azure Cosmos DB Documents.
This key is also used as password for emulator certificate file.

@return predefined emulator key
@see <a href="https://docs.microsoft.com/en-us/azure/cosmos-db/local-emulator?tabs=ssl-netstd21#authenticate-requests">Azure Cosmos DB Documents</a>
modules/azure/src/main/java/org/testcontainers/containers/CosmosDBEmulatorContainer.java