Fix example comments in proto files

Signed-off-by: Tiyash Basu <[email protected]>

Author: tiyash-basu-frequenz

proto/frequenz/api/common/v1alpha8/microgrid/electrical_components/electrical_components.proto

@@ -753,7 +753,7 @@ message ElectricalComponentStateSnapshot {
 //          connection: "pv_0"
 //        }
 //      ],
-//      states: [
+//      state_snapshots: [
 //        /* list of states for multiple timestamps */
 //        {
 //          sample_time: "2023-10-01T00:00:00Z",

proto/frequenz/api/common/v1alpha8/microgrid/sensors/sensors.proto

@@ -162,7 +162,7 @@ message SensorStateSnapshot {
 //          connection: "humidity_sensor_1"
 //        }
 //      ],
-//      states: [
+//      state_snapshots: [
 //        {
 //          sample_time: "2023-10-01T00:00:00Z",
 //          states: [],