System kind is missing codeLocations under datadog

[mattm-ecoatm]

The example shows it should be possible:

https://docs.datadoghq.com/software_catalog/service_definitions/v3-0/#example-yaml-for-kindsystem

datadog:
  codeLocations:
    - repositoryURL: https://github.com/myorganization/myrepo.git
      paths:
        - path/to/service/code/**

The UI shows a link type in a system kind as well. But this is missing from the schema.

schema/service-catalog/v3/system.schema.json

Lines 80 to 89 in 9118fa9

	"datadog": {
	"type": "object",
	"description": "Datadog product integrations for the service entity",
	"additionalProperties": false,
	"properties": {
	"performanceData": {
	"$ref": "datadog_performance.schema.json"
	},
	"pipelines": {
	"$ref": "datadog_pipelines.schema.json"

Service allows it as defined here

schema/service-catalog/v3/service.schema.json

Lines 129 to 130 in 9118fa9

	"codeLocations": {
	"$ref": "datadog_code_locations.schema.json"