fix: implement repository test

changes:
- Implement repository test for the sqlite backend
- Add testutils package to start container images
- Remove deprecated till_date in measured values
- Renamed columns of the table humidities, pressures and temperatures

pkg/repository/db/postgres.go

@@ -146,7 +146,7 @@ func (postgres *Postgres) InsertMeasuredValues(ctx context.Context, measuredValu
 		defer stmt.Close()
 
 		for _, measuredValue := range measuredValues {
-			_, err := stmt.Exec(&measuredValue.ID, &measuredValue.Value, &measuredValue.FromDate, &measuredValue.TillDate, &measuredValue.SensorID, &measuredValue.CreationDate, &measuredValue.UpdateDate)
+			_, err := stmt.Exec(&measuredValue.ID, &measuredValue.Value, &measuredValue.SensorID, &measuredValue.CreationDate)
 			if err != nil {
 				return fmt.Errorf("Failed to execute statement: %v", err)
 			}