Add IgnoringCyclicReferences() for test to pass

Author: MaggieKimani1

test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiSchemaTests.cs

@@ -611,7 +611,7 @@ public void ParseAdvancedSchemaWithReferenceShouldSucceed()
                                 }
                             }
                     }
-                }, options => options.Excluding(m => m.Name == "HostDocument"));
+                }, options => options.Excluding(m => m.Name == "HostDocument").IgnoringCyclicReferences());
         }