Merge pulumi/pulumi#11148

11148: Add Json option to dotnet automation api r=Frassle a=Frassle

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# Description

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## Checklist

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- [ ] I have added tests that prove my fix is effective or that my feature works
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- [x] I have run `make changelog` and committed the `changelog/pending/<file>` documenting my change
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Co-authored-by: Fraser Waters <fraser@pulumi.com>

sdk/Pulumi.Automation/UpdateOptions.cs

@@ -66,5 +66,10 @@ public class UpdateOptions
         /// Print detailed debugging output during resource operations
         /// </summary>
         public bool? Debug { get; set; }
+
+        /// <summary>
+        /// Format standard output as JSON not text.
+        /// </summary>
+        public bool? Json { get; set; }
     }
 }

sdk/Pulumi.Automation/WorkspaceStack.cs

@@ -800,6 +800,11 @@ static void ApplyUpdateOptions(UpdateOptions options, List<string> args)
             {
                 args.Add("--debug");
             }
+
+            if (options.Json is true)
+            {
+                args.Add("--json");
+            }
         }
     }
 }