Update to the Datsource.connection.update() functionality

[JustinGrilli]

Summary

Currently updating the Datsource.connection will not update the caption of the NamedConnection object.

The NamedConnection.caption should match the Connection.server.

Changes

• Added functionality to the ParentConnection.update() to update the NamedConnection.caption
• Updated logic in the datasource CLI to use Datasource.connection.update() to update a connection
• Updated test for Datasource.connection.update()
  • Removed test numbers from comments above the test

Tests

• Ran updated test for Datasource.connection.update()

[jaybythebay]

LGTM!