feat: update field constants (labkit-spec v1.0)

service-platforms-labkitrequested to merge
labkit-spec/update-fields into master

Automated update from labkit-spec. Field constants have been regenerated from schema/fields.yaml.

To add or modify fields, see the labkit-spec README.

Triggered by: https://gitlab.com/gitlab-org/quality/tooling/labkit-spec/-/pipelines/2754539762

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