Fix YAML linter not printing the erroring file when failing to load it (#6256)

Robust.Shared/Prototypes/PrototypeManager.YamlValidate.cs

@@ -39,7 +39,14 @@ public partial class PrototypeManager
             }
 
             var yamlStream = new YamlStream();
-            yamlStream.Load(reader);
+            try
+            {
+                yamlStream.Load(reader);
+            }
+            catch (Exception e)
+            {
+                throw new PrototypeLoadException($"Error loading file: '{resourcePath}'\n{e}");
+            }
 
             foreach (var doc in yamlStream.Documents)
             {