Upgrade govspeak gem to 3.2.0 to fix address bug

There was a bug around  and preceeding newlines, see: https://www.agileplannerapp.com/boards/105200/cards/8759

Example:

```
The address box

$A
Overseas Registration Unit
Foreign & Commonwealth Office
$A
```
Merge pull request #1316 from alphagov/upgrade-govspeak-to-3.2.0

Upgrade govspeak gem to 3.2.0 to fix address bug