env tag usage example is not aligned with the config yaml

[shaul75]

The example here is specifying the env tag nested under the tags: attribute:

puppet-datadog-agent/manifests/init.pp

Line 250 in cdf0e67

# tags => ['env:production', 'linux'],

While the actual yaml config documentation suggests otherwise, that it's a separate root level attribute.

env: <ENV>
tags:
  - service:<SERVICE>

• https://github.com/DataDog/datadog-agent/blob/main/pkg/config/config_template.yaml
• https://docs.datadoghq.com/getting_started/tagging/unified_service_tagging/?tab=systemmetrics#non-containerized-environment

Which of them correct? is there any significance to env outside of tags?