API virtualmachine config_template data is missing

[nicolai-hornung-bl]

Deployment Type

Self-hosted

NetBox Version

v3.7.1

Python Version

3.8

Steps to Reproduce

Query the API Object of any VM. While the render-config endpoint was added in v3.7.1 with PR #14287 the corresponding config_template value cannot be queried or set using the API.

Expected Behavior

I want to be able to assign and query config templates to virtualmachines using the API as I am able to do with Devices and in the GUI.

Observed Behavior

The config_template key is missing.

[jeremystretch]

Looks like the field was mistakenly omitted from VirtualMachineWithConfigContextSerializer. (The base serializer has it defined.)