Rename `SensorStateCode` variant `ON` to `OK` in sensors.proto#350

tiyash-basu-frequenz merged 1 commit intofrequenz-floss:v0.x.xfrequenz-floss/frequenz-api-common:v0.x.xfrom

tiyash-basu-frequenz:311_sensor_state_ontiyash-basu-frequenz/frequenz-api-common:311_sensor_state_onCopy head branch name to clipboard