fix: improve provisioner key cli usability (#14834)

What this changes:
- Unhides the `--key` flag on provisioner start
- Deprecates and hides `provisionerd` command group in favor of
`provisioner(s)`
- Removes org id from `coder provisioner keys list`

enterprise/cli/root.go

@@ -17,6 +17,7 @@ func (r *RootCmd) enterpriseOnly() []*serpent.Command {
 		r.licenses(),
 		r.groups(),
 		r.provisionerDaemons(),
+		r.provisionerd(),
 	}
 }