Add systemd.unit.substate as an integration service check. (#8730)
Add systemd.unit.substate as an integration service check. (#8730)

* Update service_checks.json

* Update systemd/assets/service_checks.json

* Update systemd/assets/service_checks.json
DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core