BUG: date for (one) review - 9/1/2022 instead of 09/01/2022

[lwasser]

The pygmt review has a slight unusual date format (thanks to me!) that looks like this

because there are no 0's before the month and day, it then is added to our yaml data without quotes. so if we wanted to use this date in the future, it would cause parsing problems. It probably makes sense to add a step to the ReviewModel validator for date_Accepted that looks for single digit values and adds a 0 before.

[lwasser]

this will be closed if we address #179