Merge pull request #2091 from solliancenet/cj-fix-content-artifact-pe…

…rsistence

Fix format of content artifact property bag

src/dotnet/Common/Models/Orchestration/Response/ContentArtifact.cs

@@ -47,5 +47,5 @@ public class ContentArtifact
     /// The metadata associated with the content.
     /// </summary>
     [JsonPropertyName("metadata")]
-    public Dictionary<string, object>? Metadata { get; set; }
+    public Dictionary<string, string>? Metadata { get; set; }
 }