There's a need to show a label on an address entry page that contains hidden text using `span.visuallyhidden`.
There's a need to show a label on an address entry page that contains hidden text using `span.visuallyhidden`.

Allow unescaped HTML for the label in input-text-group mixin.

UKHomeOffice/passports-template-mixins,UKHomeOffice/passports-template-mixins