chore: fixes is component information while walking media types

Signed-off-by: Vincent Biret <vibiret@microsoft.com>

Author: baywet

src/Microsoft.OpenApi/Services/OpenApiWalker.cs

@@ -800,7 +800,7 @@ internal void Walk(IDictionary<string, IOpenApiMediaType>? content)
                 }
 
                 _visitor.CurrentKeys.Content = mediaType.Key;
-                WalkItem(mediaType.Key, mediaType.Value, static (self, item) => self.Walk(item));
+                WalkItem(mediaType.Key, mediaType.Value, static (self, item, isComponent) => self.Walk(item, isComponent), isComponent: false);
                 _visitor.CurrentKeys.Content = null;
             }
         }