Guard against Fatal Errors in `OrdersTableQuery`

In logs we are saw some reporting of fatal error spikes in src/Internal/DataStores/Orders/OrdersTableQuery.php. The stack trace for most of these errors had this:

/srv/htdocs/wp-content/plugins/code-snippets/php/snippet-ops.php(584) : eval()'d code(8): wc_get_orders(Array)

The likely suspect here is that this snippet plugin is providing bad arguments to wc_get_orders which in turn is triggering the fatal error. Some type checks should be added here (at least that's where I think the error is getting triggered).