fix: forgotten Save method for YamlConfiguration

Engine.Integration/Engine.Integration.Yaml/YamlConfiguration.cs

@@ -36,4 +36,9 @@ public class YamlConfiguration : BasicConfiguration
         foreach ((string key, string value) in valuePairs)
             Set(key, value);
     }
+
+    public void Save()
+    {
+        File.WriteAllText(FilePath, yamlSerializer.Serialize(Values));
+    }
 }