Fix GTM/GA env var on production
Fix GTM/GA env var on production

The new env var was intended to switch on Google Tag Manager but there
was a typo so it actually overrode (and therefore broke) the GA
implementation

ministryofjustice/cla_public,ministryofjustice/cla_public,ministryofjustice/cla_public,ministryofjustice/cla_public