Cleans the last few instances of ExpectMatch that didn't use the new `(ctx, ...)` variant, then deletes the deprecated method and renames `ExpectMatchContext` to drop the `Context` suffix.
* chore: allow CreateUser to accept multiple organizations
In a multi-org deployment, it makes more sense to allow for multiple
org memberships to be assigned at create. The legacy param will still
be honored.
* Handle sdk deprecation better by maintaining cli functions
* Detects the following pattern where the CLI is initialized with a client authenticated as the "first user":
client := coderdtest.New(t, ...)
[...]
user := coderdtest.CreateFirstUser(t, client)
[...]
clitest.SetupConfig(t, client, root)
* Updates documentation regarding role permissions on workspaces.