Pricing Table Block: The button in pricing plan tile should not move based on 'Add Feature' text

[Rolilink]

Is your feature request related to a problem? Please describe.

When adding text the buttons are being pushed down leading to the buttons in the end not being at the same horizontal level.

Describe the solution you'd like

The user would like the pricing table buttons to align horizontally!.

Describe alternatives you've considered

None yet!.

Additional context/screenshots

Original Issue: https://github.com/Automattic/wp-calypso/issues/52507