Mark all Terraform resources that have aliases fields as computed only

[rocktavious]

Now that we've completed https://github.com/OpsLevel/team-platform/issues/496 we should deprecate all aliases fields from other resources like opslevel_service and opslevel_team such that they are only computed fields. As the proper way to manage aliases on resources is the new opslevel_alias resource. It handles all of the edgecases around alias management very very well and works for all resource types that are aliasable.