Fix "interpreted as grouped expression" warning
Fix "interpreted as grouped expression" warning

Rubocop lint highlights that before (:each) is ambiguous, that
the (:each) could be considered a grouped expression like (1 + 1)

Removing the space between the method (before) and the argument
parenthesis removes this ambiguity, and hence the warning.

gds-operations/vcloud-core,gds-operations/vcloud-core,UKHomeOffice/vcloud-core,UKHomeOffice/vcloud-core