Some examples still use the embedded server

[snowell]

As of 8.x we removed this functionality, but there's at least one example that's still using it:

stardog-examples/examples/api/main/src/com/complexible/stardog/examples/api/ConnectionAPIExample.java

Line 72 in c3f5f94

try (AdminConnection aAdminConnection = AdminConnectionConfiguration.toEmbeddedServer()