Add charged battery to headlamp in vision tests

[kevingranade]

Summary

SUMMARY: None

Purpose of change

After #40791 some vision tests started failing because the light-providing item in the test was not charged.

Describe the solution

Load the item with a charged battery.

Describe alternatives you've considered

There might be a better solution which results in item flashlight( "flashlight_type" ) resulting in a charged item lie it did pre-nested inventory overhaul.

Testing

This will ONLY impact the vision tests, so if the vision tests start passing again we're good.