fix: 'coder update' should always start a workspace (#6437)

* fix: 'coder update' should always start a workspace

cli/testdata/coder_--help.golden

@@ -45,7 +45,7 @@ Workspace Commands:
   ssh            Start a shell into a workspace
   start          Start a workspace
   stop           Stop a workspace
-  update         Update a workspace
+  update         Will update and start a given workspace if it is out of date.
 
 Flags:
       --global-config coder   Path to the global coder config directory.

cli/testdata/coder_update_--help.golden

@@ -1,4 +1,4 @@
-Update a workspace
+Will update and start a given workspace if it is out of date. Use --always-prompt to change the parameter values of the workspace.
 
 Usage:
   coder update <workspace> [flags]

cli/update.go

@@ -20,7 +20,9 @@ func update() *cobra.Command {
 		Annotations: workspaceCommand,
 		Use:         "update <workspace>",
 		Args:        cobra.ExactArgs(1),
-		Short:       "Update a workspace",
+		Short:       "Will update and start a given workspace if it is out of date.",
+		Long: "Will update and start a given workspace if it is out of date. Use --always-prompt to change " +
+			"the parameter values of the workspace.",
 		RunE: func(cmd *cobra.Command, args []string) error {
 			client, err := CreateClient(cmd)
 			if err != nil {
@@ -68,7 +70,7 @@ func update() *cobra.Command {
 
 			build, err := client.CreateWorkspaceBuild(cmd.Context(), workspace.ID, codersdk.CreateWorkspaceBuildRequest{
 				TemplateVersionID:   template.ActiveVersionID,
-				Transition:          workspace.LatestBuild.Transition,
+				Transition:          codersdk.WorkspaceTransitionStart,
 				ParameterValues:     buildParams.parameters,
 				RichParameterValues: buildParams.richParameters,
 			})