l10n - Add cache step to L10nBuild (#2090)
l10n - Add cache step to L10nBuild (#2090)

* l10n - Add cache step to L10nBuild

* remove expand
mozilla-mobile/focus-ios,mozilla-mobile/focus-ios,mozilla-mobile/focus-ios,mozilla-mobile/focus-ios,mozilla-mobile/focus-ios,mozilla-mobile/focus-ios