internal/cmd: rename ferry files to client_agent (#4815)

This was missed in the big rename PR

internal/cmd/client_agent_cmd_darwin.go

@@ -0,0 +1,40 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: BUSL-1.1
+
+package cmd
+
+import (
+	"github.com/hashicorp/boundary/internal/cmd/base"
+	"github.com/hashicorp/boundary/internal/cmd/commands/clientagentcmd"
+	"github.com/mitchellh/cli"
+)
+
+func init() {
+	extraCommandsFuncs = append(extraCommandsFuncs, func(ui, serverCmdUi cli.Ui, runOpts *RunOptions) {
+		Commands["client-agent"] = func() (cli.Command, error) {
+			return &clientagentcmd.ClientAgentCommand{
+				Command: base.NewCommand(ui),
+			}, nil
+		}
+		Commands["client-agent status"] = func() (cli.Command, error) {
+			return &clientagentcmd.StatusCommand{
+				Command: base.NewCommand(ui),
+			}, nil
+		}
+		Commands["client-agent pause"] = func() (cli.Command, error) {
+			return &clientagentcmd.PauseCommand{
+				Command: base.NewCommand(ui),
+			}, nil
+		}
+		Commands["client-agent resume"] = func() (cli.Command, error) {
+			return &clientagentcmd.ResumeCommand{
+				Command: base.NewCommand(ui),
+			}, nil
+		}
+		Commands["client-agent sessions"] = func() (cli.Command, error) {
+			return &clientagentcmd.SessionsCommand{
+				Command: base.NewCommand(ui),
+			}, nil
+		}
+	})
+}