VCSWP 23795 (#74)

* Ignore null values when serializing to json

* Upgrade npm packages

* Update dictionary building and ensure sub objects are serialized correctly

* Cleanup unit tests

Author: ngarg-vail

CHANGELOG.md

@@ -9,6 +9,12 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 None
 
+<a name="5.1.2"></a>
+
+### Changed
+
+- Remove null values when serializing models to JSON
+
 <a name="5.1.1"></a>
 
 ## [5.1.1] - 2025-02-18

README.md

@@ -5,7 +5,7 @@ FreeClimb is a cloud-based application programming interface (API) that puts the
 This C# SDK is automatically generated by the [OpenAPI Generator](https://openapi-generator.tech) project:
 
 - API version: 1.0.0
-- SDK version: 5.1.1
+- SDK version: 5.1.2
 - Generator version: 7.9.0
 - Build package: org.openapitools.codegen.languages.CSharpClientCodegen
     For more information, please visit [https://www.freeclimb.com/support/](https://www.freeclimb.com/support/)