test: reverts yaml parsing to json

Author: baywet

test/Microsoft.OpenApi.Tests/Models/OpenApiEncodingTests.cs

@@ -213,7 +213,9 @@ public async Task SerializeEncodingWithNestedEncodingAsV32YamlWorks()
             var actual = await encoding.SerializeAsYamlAsync(OpenApiSpecVersion.OpenApi3_2);
 
             // Assert
-            Assert.True(JsonNode.DeepEquals(JsonNode.Parse(actual), JsonNode.Parse(expected)));
+            actual = actual.MakeLineBreaksEnvironmentNeutral();
+            expected = expected.MakeLineBreaksEnvironmentNeutral();
+            Assert.Equal(actual, expected);
         }
 
         [Fact]