Fix Spectre.Console.Cli 0.53.1 API breaking changes

Co-authored-by: kzu <169707+kzu@users.noreply.github.com>
Agent-Logs-Url: https://github.com/devlooped/dotnet-gcm/sessions/307cf743-a120-43ee-95a0-37a8cb124ea8

Author: Copilot

src/DeleteCommand.cs

@@ -1,5 +1,6 @@
 extern alias CredentialManager;
 using System.ComponentModel;
+using System.Threading;
 using System.Threading.Tasks;
 using Spectre.Console;
 using Spectre.Console.Cli;
@@ -24,7 +25,7 @@ public override ValidationResult Validate()
         }
     }
 
-    public override async Task<int> ExecuteAsync(CommandContext context, DeleteSettings settings)
+    public override async Task<int> ExecuteAsync(CommandContext context, DeleteSettings settings, CancellationToken cancellationToken)
     {
         if (settings.Namespace == null)
         {

src/GetCommand.cs

@@ -1,6 +1,7 @@
 extern alias CredentialManager;
 using System;
 using System.ComponentModel;
+using System.Threading;
 using System.Threading.Tasks;
 using Spectre.Console;
 using Spectre.Console.Cli;
@@ -25,7 +26,7 @@ public override ValidationResult Validate()
         }
     }
 
-    public override async Task<int> ExecuteAsync(CommandContext context, GetSettings settings)
+    public override async Task<int> ExecuteAsync(CommandContext context, GetSettings settings, CancellationToken cancellationToken)
     {
         if (settings.Namespace == null)
         {

src/SetCommand.cs

@@ -1,5 +1,6 @@
 extern alias CredentialManager;
 using System.ComponentModel;
+using System.Threading;
 using System.Threading.Tasks;
 using Spectre.Console.Cli;
 
@@ -8,7 +9,7 @@ namespace Devlooped;
 [Description("Store a credential.")]
 public class SetCommand : AsyncCommand<CredentialUrlSettings>
 {
-    public override async Task<int> ExecuteAsync(CommandContext context, CredentialUrlSettings settings)
+    public override async Task<int> ExecuteAsync(CommandContext context, CredentialUrlSettings settings, CancellationToken cancellationToken)
     {
         if (settings.Namespace == null)
         {

src/SpectreExtensions.cs

@@ -31,7 +31,7 @@ public static IConfigurator PrettyHelper(this IConfigurator config)
             Options = new Spectre.Console.Cli.Help.OptionStyle
             {
                 Header = new Style(Color.Yellow, decoration: Decoration.Bold),
-                OptionalOption = new Style(Color.Grey),
+                OptionalOptionValue = new Style(Color.Grey),
                 RequiredOption = new Style(Color.Blue, decoration: Decoration.Bold),
             },
             Commands = new Spectre.Console.Cli.Help.CommandStyle