Update on_off_schedule_state_persistence.yaml

[erkr]

This extra delay action adds a 10 seconds delay in case the automation is triggered by a restart. This to give e.g zigbee entity’s a little more time to become available

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Proposed change*

This extra delay action adds a 10 seconds delay in case the automation is triggered by a restart. This to give e.g zigbee entity’s a little more time to become available

This change fixes issue:
#485

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