No aria-label applied to input element

[alessandromontesanti]

Describe the bug
When setting aria label for the input element through the aria-labels prop, the label is not applied.

To Reproduce
Steps to reproduce the behavior:

1. Set the aria-labels prop to the configuration object {input: 'Some label'}
2. Label is not applied to the input element of the datepicker

Expected behavior
Label set should be applied to the input element.