Staging: pgbouncer pointing to incorrect DB

On staging, queries to FDW tables are not matching with queries to the real tables.

[ gstg ] production> ProjectRepositoryState.count
=> 0
[ gstg ] production> Geo::Fdw::ProjectRepositoryState.count
=> 3068953

which led to

ActiveRecord::Base.connection_config => :host=>"postgres-01-db-gstg.c.gitlab-staging-1.internal", :port=>5432

Geo::TrackingBase.connection.execute("SELECT * from pg_foreign_server").values => host=pgbouncer-01-db-gstg.c.gitlab-staging-1.internal,port=6432

But

cat /var/opt/gitlab/consul/databases.ini
[databases]

gitlabhq_production = host=postgres-02-db-gstg.c.gitlab-staging-1.internal auth_user=pgbouncer

We're expecting postgres-01-db-gstg.c.gitlab-staging-1.internal but it seems pgbouncer is configured for postgres-02-db-gstg.c.gitlab-staging-1.internal

/cc @eReGeBe @nick.thomas